(a) adding iron to the oceans so that the threat of global warming can be addressed through geoengineering strategies.
Major radiative forcing geoengineering techniques discussed in the literature include stratospheric aerosol injection,sea sky brightening,cirrus thinning, space mirrors,surface-based brightening,and various radiation management techniques.Albedo enhancement. Increase the reflectivity of clouds or the Earth's surface so that more of the Sun's heat is reflected back into space.Space reflectors. By blocking a small proportion of sunlight before stratospheric aerosols reach Earth, some geoengineering schemes propose solar radiation management technologies that modify the Earth's albedo or reflect incoming short-wavelength sunlight.Human activity is driving this change, primarily through the emission of carbon dioxide (CO2) and other greenhouse gases, which are released.
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Fill The Blank? comets tend to be ________ than asteroids, and it is estimated that there are far ___________ large comets than large asteroids.
Comets tend to be icier than asteroids, and it is estimated that there are far fewer large comets than large asteroids.
Asteroids are small, rocky objects that orbit the Sun. They are remnants from the formation of the Solar System about 4.6 billion years ago, and are made up of rock, metal, and other materials. Most asteroids are found in the asteroid belt between Mars and Jupiter, but some are also found in other parts of the Solar System.
Asteroids range in size from tiny pebbles to large objects hundreds of kilometers across. The largest asteroid in the Solar System is Ceres, which is about 590 miles (940 kilometers) in diameter. There are estimated to be millions of asteroids in the asteroid belt alone, with many more scattered throughout the Solar System.
Asteroids can be classified into different types based on their composition. The most common types are C-type (carbonaceous), S-type (silicaceous), and M-type (metallic). C-type asteroids are the most common and are rich in carbon, while S-type asteroids are made up of silicate rock and metal. M-type asteroids are mostly metallic, with a high concentration of iron and nickel.
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The radius of a circle is 6 meters. What is the length of a 120° arc?
The length of a 120° arc is 12.58m
What is meant by circumference?The circumference of a circle equals the length around it, however, this cannot be used as a definition of the distance is defined in terms of straight lines, as it is in many beginning lectures. Under these assumptions, the circumference of a circle may be defined as the limit of the perimeters of inscribed regular polygons with an increasing number of sides. Circumference may be used to define both real-world objects and abstract geometric forms.
The circle's overall circumference is = 2πr
The total circle has 360°.
Given arc has only 120°.
Hence,
= 2×22/7×120/360
= 88/7
=12.58
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Which of these was NOT seen telescopically by Galileo?
Select one:
A. Four moons around Jupiter
B. Venus' phase cycle
C. Stellar parallax
D. Sunspots
E. Craters and mare on the Moon
(C) Stellar parallax these were NOT seen telescopically by German astronomer Simon Marius claimed to have seen the moons at about the same time
But did not publish his observations,so Galileo is credited with his discovery.These large moons,named Io,Europa,Ganymede,and Callisto, are each distinctive worlds. When Galileo pointed his telescope at Jupiter, the largest planet in our solar system,he made an amazing discovery.The planet had four stars around it.Within days,Galileo discovered that these stars were actually moons orbiting Jupiter.The four Galilean moons were the first celestial bodies to be discovered with a telescope.Although Galileo at first thought they were fixed stars,his continued observations showed that their positions changed every night.Galileo soon recognized that these new objects were satellites of Jupiter.
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regions where the continents or the sea floor are pulling apart are called?
The spreading is a result of forces pulling the oceanic lithosphere on either side of the ridge in opposite directions.The forces are produced by mantle convection and gravity.
They have moved gradually over hundreds of millions of years,alternately combining into supercontinents and pulling apart in a process known as continental drift.Seafloor spreading is a geological process in which large slabs of Earth's lithosphere plate tectonics move apart from each other. Seafloor spreading and other processes of tectonic activity are the result of mantle convection.Mantle convection is the slow,churning movement of Earth's mantle.At places where two plates pull apart,at mid-ocean ridges, new seafloor is continuously formed during seafloor spreading.
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where does the water involved in melting at subduction zones come from?
The water involved in melting at subduction zones comes from various sources. One of the most important sources is the hydration of minerals in the subducting oceanic plate.
The marine plate is composed of jewels that contain minerals that can hold water motes within their crystal-clear structures. As the plate descends into the hot mantle, these minerals release water due to dehumidification responses. The water also rises and mixes with the girding mantle material, lowering its melting point and leading to the conformation of magma.
Another water source in subduction zones is the oceanic sediments carried down with the subducting plate. These sediments contain organic matter, which can release water upon heating and pressurization, further contributing to the mantle's hydration and the magma's conformation. also, some water may be introduced into the mantle from the overlying plate through serpentinization, where peridotite jewels are altered to windy minerals in the presence of water.
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In Kenya, the literacy rate for males is 90.6% while the rate for girls is 79.7%. In Sudan, 71.8% of males are considered literate as opposed to 50.5%
of the female population.
Which statement BEST describes what is causing the difference in literacy rates for males and females?
The statement that BEST describes what is causing the difference in literacy rates for males and females is option B. Cultural norms and values place little emphasis on education for females in the two nations.
What is a cultural norm and value?A cultural norm is a behavior or practice that is considered typical or expected within a particular society or group. A cultural value, on the other hand, is a belief or principle that a society or group considers important and worthy of respect. Cultural norms and values are closely related, as values often underlie and shape the norms that govern behavior in a given culture.
Therefore, it is the fact that Cultural norms and values place little emphasis on education for females in the two nations.
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The complete question goes thus:
In Kenya, the literacy rate for males is 90.6% while the rate for girls is 79.7%. In Sudan, 71.8% of males are considered literate as opposed to 50.5% of the female population.
Which statement BEST describes what is causing the difference in literacy rates for males and females?
A) Female students are less able to afford tuition to attend school.
B) Cultural norms and values place little emphasis on education for females in the two nations.
C) Female students are only required to attend school until age 7, while males attend until age 10.
D) Male students have greater literacy rates because of mandatory military programs in the schools.
What percentage of earth is covered in snow and ice?
About 10% of the Earth's surface is covered by permanent ice or snow, mainly located in the polar regions.
This percentage can vary seasonally, as the extent of ice and snow cover fluctuates with climate conditions. The Arctic Ocean and the Antarctic continent have the largest ice coverage, and the melting of these ice sheets is a significant contributor to sea-level rise.
The decline of the polar ice cap due to global warming is also affecting the environment, wildlife, and human activities in the regions. However, it's worth noting that some regions may experience more snow and ice cover than others, depending on the local climate and topography.
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identify the factors that cause melting and thus the formation of magma.
The decompression or the overlying pressure present in the mantle rocks causes the rocks to melt and form the magma. when tectonic plates separate decompression enables the melting of rocks.
There are several factors that cause the melting of magma one important factor is temperature. Rocks melt when the temperature of rocks increases above the melting point.
Pressure and fluids present in rocks also cause the formation of magma. The addition of volatiles and heat can conclude to form magma, rocks are made of different minerals and have different melting points.
Thus, magma can have different and variant compositions which may include different, dissolved gases such as carbon dioxide and hydrogen sulfide.
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2. a. b. C. d. Use the world time zone map to work out the time differences When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in South Africa (30°E) When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in California on the West coast of America? A football match begins in Sydney (on the east coast of Australia) at 4pm (16:00) on Saturday What time would we watch the game live in South Africa? How many time zones are there in America? How many time zones are there in Africa?
When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in South Africa (30°E)? The time in South Africa is 14:00.
When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in California on the West coast of America? The time in California on the west coast of America is 4:00pm the previous day.
A football match begins in Sydney (on the east coast of Australia) at 4pm (16:00) on Saturday What time would we watch the game live in South Africa? The time we would watch the game live in South Africa is 7:00am.
There are six time zones in America and they are;
Hawaii-Aleutian time, Alaska time, Pacific time, Mountain time,Central time andEastern timeThere are six time zones in Africa and they are;
Mauritius and Seychelles Time (UTC/GMT+4), East Africa Time (UTC/GMT+3), Central Africa Time (UTC/GMT+2), West Africa Time (UTC/GMT+1), Greenwich Mean Time (UTC/GMT), and Cape Verde Time (UTC-1). What is time zonesA time zone is an area which observes a uniform standard time for legal, commercial and social purposes. It is a geographic region within which the same standard time is used.
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Where is active sea-floor spreading occurring today? The Red Sea. The Great Salt Lake. The Mississippi River. Lake Michigan.
option 1) The Red Sea. is active sea-floor spreading occurring today.Some of the world's hottest and saltiest seawater can be found in the Red Sea.
The Red Sea is the saltiest of all the seas that connect to the ocean without the presence of a single river. One popular theory for the Red Sea's name is that it contains a cyanobacterium called Trichodesmium erythraeum, which turns the normally blue-green water reddish-brown.
Some of the world's hottest and saltiest seawater can be found in the Red Sea. It is one of the most heavily traveled waterways in the world, carrying maritime traffic between Europe and Asia via its connection to the Mediterranean Sea via the Suez Canal. Its name comes from the color changes seen in its waters.
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Full Question :Where is active sea-floor spreading occurring today?
The Red Sea. The Great Salt Lake. The Mississippi River. Lake Michigan.The U.S. has had significant advantages due to its physical geography. Which of these is NOT one?
Answer:
Explanation:
one advantage that is not a direct result of the physical geography of the United States is its political stability. While physical geography can certainly influence the development and stability of a country, it is not an inherent advantage in and of itself. The political stability of the United States is more a result of historical, social, and cultural factors.
archaeological evidence of ancient peoples included the study of the written word?
Yes, archaeological evidence of ancient peoples includes the study of the written word. In fact, the study of ancient writing is a crucial aspect of archaeology.
Through the examination of written documents, archaeologists can gain insight into the beliefs, customs, and daily lives of ancient peoples. Written evidence can include inscriptions on stone, clay tablets, papyrus, and other materials.
These written sources can provide valuable information about ancient societies, including their religious practices, economic systems, and political structures. By studying the written word, archaeologists can gain a deeper understanding of ancient cultures and how they evolved over time.
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subduction zones occur a what type of plate boundary?
Converging plate boundaries occur at subduction zones.While some plates collide and build mountains by stacking rocks to release pressure.
This most commonly occurs when one of the plates at the convergent boundary is an oceanic plate and the other is a continental plate the plate,the denser of the two,is pushed down where it melts as it approaches the mantle Magma produced through plate melting often rises and can reach the surface through the formation of volcanoes.Subduction occurs at some convergent plate boundaries. Subduction forces one of the tectonic plates down into the Earth's mantleBasaltic oceanic crust contains hydrated minerals such as amphiboles,some of which formed by hydrothermal alteration as seawater seeped through hot, fractured, young oceanic crust on the mid-oceanic ridge.As the oceanic crust sinks further into the mantle,the pressure increases,the temperature of the oceanic crustal rocks rises more slowly because the rocks are poor conductors of heat.At depths of about 100 km below the surface,the pressure is great enough for hydrated minerals to undergo metamorphism.
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1. glacial scratch lamination 2. glacier's stopping point water table 3. cutoff meander oxbow 4. very fine abyssal muck seamount 5. wind-blown dust striation 6. hard, stony clay till 7. submarine extinct volcano loess 8. water covering the earth ooze 9. thin layer of sediment moraine 10. top of the saturated zone hydrosphere
Glacial scratch lamination, glacier's stopping point water table, cutoff meander oxbow, very fine abyssal muck seamount, wind-blown dust striation, hard, stony clay till, submarine extinct volcano lose, water covering the earth ooze, thin layer of sediment moraine and top of the saturated zone hydrosphere are explained here:
1. Glacial scratch lamination: This refers to the layering of sediment that is created by glacial movement. As a glacier moves, it picks up sediment and rocks from the ground and grinds them against the underlying bedrock, leaving scratch marks on the surface. The sediment is then deposited in layers, with each layer showing evidence of the scratches made by the glacier.
2. Glacier's stopping point water table: The water table is the level below the ground where the soil and rock are saturated with water. In areas where a glacier has advanced and then retreated, the water table can be influenced by the glacier's stopping point, which is the farthest point the glacier advanced to before retreating.
3. Cutoff meander oxbow: A meander is a loop in a river, and a cutoff occurs when the river erodes through the narrow neck of the loop, creating a new channel and leaving behind an oxbow lake.
4. Very fine abyssal muck seamount: This refers to the sediment that accumulates on the ocean floor in areas of very deep water. Abyssal muck is made up of fine particles of organic and inorganic matter, and it can accumulate to great depths in areas where there is little current to stir it up.
5. Wind-blown dust striation: Wind-blown dust can create striations on the surface of rocks, indicating the direction and strength of the wind that carried the dust.
6. Hard, stony clay till: Till is a type of sediment that is deposited by glaciers, and it can be made up of a variety of materials, including clay, sand, and rocks. Hard, stony clay till is a type of till that is made up of mostly clay and has a high concentration of large, hard rocks.
7. Submarine extinct volcano loess: Loess is a type of sediment that is made up of fine particles of silt and clay that have been deposited by wind. Submarine extinct volcano loess is a type of loess that has been deposited on the ocean floor near an extinct underwater volcano.
8. Water covering the earth ooze: Ooze is a type of sediment that accumulates on the ocean floor and is made up of the remains of dead marine organisms, as well as inorganic particles. Water covering the earth ooze refers to the ooze that is found on the ocean floor, which covers more than 70% of the Earth's surface.
9. Thin layer of sediment moraine: A moraine is a ridge of sediment that is left behind by a glacier as it retreats. A thin layer of sediment moraine refers to a moraine that has a relatively small amount of sediment deposited on it.
10. Top of the saturated zone hydrosphere: The hydrosphere refers to all of the water on and in the Earth. The top of the saturated zone is the level at which the soil and rock are completely saturated with water, and it marks the top of the area where groundwater can be extracted.
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when you look at the sky on a dark night and see stars of different colors, which are the hottest?
When looking at stars on a dark night, the color of a star can give some indication of its temperature. Generally, the hotter a star, the bluer it appears, and the cooler a star, the redder it appears
When looking at the sky on a dark night and seeing stars of different colors, the bluer stars are generally hotter than the redder stars. The hottest stars appear blue-white, while the coolest stars appear red. Here's a breakdown of the colors and corresponding temperatures:
Blue-white stars have temperatures of around 10,000 to 30,000 Kelvin (K).
- White stars have temperatures of around 7,500 to 10,000 K.
- Yellow stars have temperatures of around 5,200 to 6,000 K.
- Orange stars have temperatures of around 3,500 to 4,600 K.
- Red stars have temperatures of around 2,000 to 3,000 K.
It's worth noting that the brightness of a star can also affect its color perception, as a brighter star can appear bluer than it actually is. However, in general, the color of a star provides a good indication of its temperature.
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why is a synodic month (the time needed to complete one cycle of lunar phases) longer than a sidereal month (the time taken by the moon to complete one orbit around earth) and not shorter?
The synodic month is longer than the sidereal month because the shape of the moon's orbit is elliptical. Therefore it constantly changes speeds as it moves around the Earth.
A synodic month is longer than a sidereal month because it takes into account the movement of the Earth around the Sun. A synodic month is a time it takes for the Moon to complete one cycle of lunar phases, which is about 29.5 days. A sidereal month, on the other hand, is the time it takes for the Moon to complete one orbit around the Earth, which is about 27.3 days.
The reason for the difference in length is that during a sidereal month, the Earth has moved slightly in its orbit around the Sun. This means that the Moon has to travel a little bit further in its orbit in order to complete one cycle of lunar phases. This extra distance is what makes a synodic month longer than a sidereal month.
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a nasa orbiter recently captured craters and formations on mars that resembled the face of which animal?
Recently, a NASA orbiter captured several craters and formations on the surface of Mars that resembled the face of a lion.
The animal that the craters and formations on Mars resembled was a lion.
The features included a large crater that resembled the lion’s nose, a smaller crater that resembled the lion’s eye, and several ridges and hills that resembled the lion’s mane and fur. While the resemblance was likely just a coincidence, it still drew the attention of many news outlets and space enthusiasts alike.
This is just the latest of many strange and fascinating discoveries that have been made on Mars, and it serves as a reminder of the wonders that the planet still holds.
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what causes the direction of the wind to change from day to night?
The direction of the wind can change from day to night due to the difference in the heating of the Earth's surface during these times.
During the day, the sun heats the surface of the Earth, causing the air near the surface to warm and rise. This creates an area of low pressure near the surface, which draws in cooler air from surrounding areas. This movement of air is known as convection, and it often results in wind blowing from cooler areas to warmer areas.
At night, the opposite occurs. The surface of the Earth cools down, and the air near the surface also cools and becomes denser. This creates an area of high pressure near the surface, which pushes air away from the surface and toward areas of lower pressure. This can result in the wind blowing in the opposite direction compared to during the day.
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What percentage of the earth's crust is silicon?
Answer:
Silicon makes up 27.7 percent of Earth's crust
Explanation:
What mountain range extends from the black sea to the caspian sea?
The Caucasus, also known as the Russian Kavkaz, is a mountainous area between the Black Sea in the west and the Caspian Sea in the east that is inhabited by Russia, Georgia, Azerbaijan, and Armenia.
The Iranian plateau and the south Caspian Sea are separated by the Alborz mountain range. It has sedimentary strata that range in age from the Upper Devonian to the Oligocene, with Jurassic limestone predominating atop a granite core, and is only 60–130 km broad. The Crimean Mountains, located in southern Crimea, the Pontic Mountains (Kaçkar Dalar), in northern Anatolia, the Strandzha, a tiny mountain range in southeast Bulgaria, and the Caucasus Mountains are the principal mountain ranges that border the Black Sea. The Caucasus Mountain Range, or simply the Caucasus Mountains, is the name of the mountain range that spans the Black and Caspian Seas. Russia, Georgia, Azerbaijan, Armenia, Turkey, and Iran all have territories in the Caucasus, a hilly isthmus of territory wedged between the Black Sea and the Caspian Sea. The 700 km (430 mi) long (Russian: aнал "враи") Eurasia Canal would run through the Kuma-Manych Depression and connect the Black Sea to the Caspian Sea. Currently, this path is occupied by a number of lakes and reservoirs as well as the shallow irrigation Kuma-Manych Canal. is sometimes referred to as the Caucasus Mountain Range or simply as the Caucasus Mountains. Russia, Georgia, Azerbaijan, Armenia, Turkey, and Iran all have territories in the Caucasus, a hilly isthmus of territory wedged between the Black Sea and the Caspian Sea. The 700 km (430 mi) long (Russian: aнал "враи") Eurasia Canal would run through the Kuma-Manych Depression and connect the Black Sea to the Caspian Sea. Currently, this path is occupied by a number of lakes and reservoirs as well as the shallow irrigation Kuma-Manych Canal.
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what action should be taken by the us for the south china sea and why?
The South China Sea is a highly contested region, with multiple countries claiming sovereignty over various islands and waters. The US, along with many other countries, has expressed concerns over China's territorial claims and militarization of the region.
There is no one-size-fits-all answer to what action the US should take in the South China Sea, as it is a complex and sensitive issue that involves multiple parties. However, some possible actions the US could take include:
Diplomatic engagement: The US could work with its allies and other countries in the region to address concerns and promote stability in the South China Sea. This could include diplomatic negotiations and dialogue with China, as well as multilateral forums such as the Association of Southeast Asian Nations (ASEAN).
Freedom of navigation operations: The US has conducted freedom of navigation operations in the South China Sea to challenge excessive territorial claims and assert the right of free and open passage for all nations.
Economic pressure: The US could also use economic pressure, such as sanctions or tariffs, to discourage China's territorial claims and militarization of the region.
Military presence: The US could also maintain a military presence in the region to deter any aggressive actions and promote stability.
Ultimately, the choice of action will depend on the specific circumstances and goals of the US, as well as its relationship with other countries in the region.
On
July 13, Secretary of State Mike Pompeo issued a statement
outlining the “U.S. Position on Maritime Claims in the South China Sea.” The statement coincides with the fourth anniversary of a landmark decision by an international arbitration tribunal vindicating claims brought by the Philippines against China under the U.N. Convention on the Law of the Sea (UNCLOS), and Pompeo’s announcement explicitly aligns the United States with the UNCLOS tribunal’s ruling, declaring that China’s expansive claims to offshore resources across most of the South China Sea are “completely unlawful.”
The day after Pompeo’s statement, Assistant Secretary of State for East Asian and Pacific Affairs David Stilwell delivered a speech setting forth a bill of particulars concerning Chinese misdeeds in the South China Sea and beyond. Stilwell argued that China seeks to “replace international law with rule by threats and coercion.”
Some observers might dismiss these statements as part of a broader Trump administration effort to demonstrate its “tough on China” credentials in the run-up to the 2020 presidential election. As diplomatic-legal communications, however, the statements warrant a closer look—as much for what they don’t do as for what they do.
Neither document substantively changes the United States’s position regarding China’s expansive South China Sea maritime claims and the inconsistency of these claims with international law—including China’s notoriously ambiguous nine-dash line covering nearly 80 percent of the South China Sea. China has never clarified whether the nine-dash line represents a claim to the land features within the line and their adjacent waters, a boundary of national sovereignty over all the enclosed waters, or a claim of some other set of “historic rights” to the maritime space within the line.
To be sure, Pompeo’s statement is the first instance in which the U.S. government has publicly endorsed the merits of the 2016 UNCLOS tribunal decision on the status of certain features in the Spratly Islands and related maritime entitlements (a decision that did not address underlying sovereignty claims). But the State Department has previously acknowledged the legitimacy of the UNCLOS tribunal’s decision, issuing a statement in July 2016 recognizing the decision as “final and legally binding on both China and the Philippines.”
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Which of these locations is most likely to have the oldest rocks?a transform fault zonethe middle of a continenta mid-ocean ridgethe top of a mountain rangean abyssal plain of an ocean basin
The oldest rock on Earth can be found on the northeast coast of Hudson Bay in Canada's bedrock, which is 4.28 billion years old.
Which of the oldest rocks on the ocean floor is the oldest?A geologist in Israel claims that the eastern Mediterranean Sea's bottom contains the oceanic crust that is approximately 340 million years old, making it the oldest in the world.
Compared to the continents, the seafloor is typically more flat and devoid of features. Erosion at the sea's surface flattened the flat-topped seamounts known as guyots, which were discovered with their tops 1800 meters below the surface. Geologically, the continental crust includes continental shelves.
Where can one find the oldest rocks?Mineral grains known as zircons, which can be found in Western Australia and date back approximately 4.36 billion years, are the oldest known form of geological material, although technically they are not rocks.
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what theory was written by copernicus, and put the sun in the center of the solar system?
Copernicus pro-posed the heliocentric theory of the solar system, in which the sun is position-ed at the solar system's center.
In his heliocentric theory, Copernicus pre-dicted the arrangement of all known planets and cal-culated their average orbital periods aro-und the sun. He was also effect-ive in explaining the every-day motions of heavenly bodies, such as the sun's rising and set-ting, with this idea. He said th-at the sun is fixed and located at the center of the solar system under this hypo-thesis. This model provided a math-ematical explanation for the apparent daily mo-tion of the stars and planets, and it also allow-ed for better predictions of the-ir positions in the sky.
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In World War II, who were the partisans? What did
they do? Answer in one paragraph. Support your
answer with details from "Teens Against Hitler
Partisans were resistance fighters who actively opposed the Axis powers (primarily Germany) during World War II.
How did they operate?They operated in occupied territories and carried out acts of sabotage, guerrilla warfare, and intelligence gathering against enemy forces.
Partisans often worked in secret and relied on the support of the local population to survive. They sought to disrupt enemy operations and morale and to gather the information that the Allies could use in their efforts to defeat the Axis powers.
They were sometimes composed of military personnel who had been separated from their units but also included civilians who joined the resistance movement for various reasons, such as a desire to fight against the enemy or to protect their homes and families.
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Which religion started in the Arabian Peninsula?
It is still practiced by the majority of people there today.
Responses
a. Hinduism
b. Judaism
c. Islam
d. Christianity
volcanic eruptions can have severe impacts on humans and the environment. determining the type of eruption, how weather patterns might distribute ash, and what populations live nearby are all linked to the ______ of the volcano.
volcanic eruptions can have severe impacts on humans and the environment. determining the type of eruption, how weather patterns might distribute ash, and what populations live nearby are all linked to the Location of the volcano.
A volcano is a crack in the crust of a planet, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber beneath the surface.
Volcanoes are most commonly found where tectonic plates are diverging or converging on Earth, and the majority are found underwater. The Mid-Atlantic Ridge, for example, has volcanoes caused by divergent tectonic plates, whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates.
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What is the tenacity of a mineral, and how can it be described? Tenacity is the mineral's resistance to breaking, bending, or otherwise deforming.
The tenacity of a mineral refers to its ability to resist breaking, bending, or deforming under stress.
It is a measure of the mineral's physical strength and durability. Different minerals have different tenacity, which can be described in various ways such as brittle, malleable, ductile, flexible, sectile, and elastic.
Brittle minerals are easily shattered or broken, while malleable minerals can be hammered or flattened into thin sheets. Ductile minerals can be stretched or pulled into wires, and flexible minerals can be bent without breaking.
Sectile minerals can be easily cut into thin shavings, and elastic minerals can deform under stress but return to their original shape when the stress is released. Understanding the tenacity of a mineral is essential in determining its properties and potential uses in various industries.
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Regions where the continents or the sea floor are pulling apart are called________________
Regions where the continents or the sea floor are pulling apart are called divergent boundaries.
These boundaries are marked by the separation of tectonic plates, which move away from each other due to forces within the Earth's mantle.Divergent boundaries occur on both continents and the ocean floor, and they are characterized by volcanic and seismic activity, as well as the formation of new crust. In the ocean, divergent boundaries are marked by mid-ocean ridges, where new oceanic crust is created by magma rising from the mantle.On continents, divergent boundaries can create rift valleys, where the land splits apart and new crust is formed. Examples of such rift valleys include the East African Rift and the Basin and Range Province in North America.Divergent boundaries can also create seafloor spreading, where new oceanic crust is continuously created, causing the ocean to widen. This process has led to the formation of the Atlantic Ocean, which continues to widen today.
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how is land owned in a typical village that practices shifting cultivation
Traditionally, villages would own all of the land; the chief would designate plots of land to individual families, who would reap the benefits of the land's yields. Private individuals now own land in places like Latin America.
Shifting cultivation is an agricultural system in which plots of land are temporarily cultivated and then abandoned, allowing post-disturbance fallow vegetation to grow freely while the cultivator moves on to another plot.
The cultivation period is usually ended when the soil shows signs of exhaustion or, more commonly, when the field becomes overrun by weeds. The time spent cultivating a field is usually shorter than the time spent allowing the land to regenerate by lying fallow.
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how are the plate motions connected with motions within the rest of the earts mantle
Answer:
because convection currents in the mantle provide the basic driving forces for plate motions
Explanation:
The motions of the Earth's tectonic plates are caused by the movement of the underlying mantle. The mantle is divided into two major layers: the upper lithospheric mantle and the lower asthenospheric mantle, through them the plate motions are connected with the movements of the mantle below.
The connection between the plate motions and the rest of the earts mantleThe plate motions are directly connected with the motions within the Earth's mantle. The Earth's mantle is a layer of solid rock that is located beneath the Earth's crust. This layer is constantly moving due to convection currents, which are caused by the heat from the Earth's core.
These convection currents cause the plates on the Earth's surface to move, which is known as plate tectonics. The plate motions are responsible for:
Creating mountains.Earthquakes.Volcanic eruptions.The movement of the plates also causes the creation and destruction of the Earth's crust. Therefore, the plate motions are directly connected with the motions within the Earth's mantle, and they are responsible for many of the Earth's geological features.
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