Answer:
Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts. Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another. Magma is lighter than rock so rises towards the Earth's surface.
Explanation:
Why and how do volcanoes actually erupt?
Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts.
Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another.
Magma is lighter than rock so rises towards the Earth's surface. As the magma rises, bubbles of gas form inside it.
Runny magma erupts through openings or vents in the earth's crust before flowing onto its surface as lava.
If magma is thick, gas bubbles cannot easily escape and pressure builds up as the magma rises.
When the pressure is too much an explosive eruption can happen, which can be dangerous and destructive.
Another way an eruption happens is when water underneath the surface interacts with hot magma and creates steam,
this can build up enough pressure to cause an explosion.
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valles marineris is the most striking example of a(n): valles marineris is the most striking example of a(n): scarp. oceanic trench. shield volcano. rift valley. impact crater.
Valles Marineris is the most striking example of option d a rift valley.
The rift valley is linear lowland that is created between mountain ranges or highlands. These are formed by extensive subterranean forces pulling apart the upper crust or lithosphere.
Valles Marineris is named after the Mariner 9 Mars orbiter of 1971-1972. It is present in the Tharsis region of Mars. It is also popular as one of the largest canyons of the solar system.
Valles Marineris is located at the equator of Mars, near the Tharsis bulge of Mars. It is 4000 km long, 7 km deep, and 200 meters wide. It has also been suggested that it could be a large tectonic crack on Mars.
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dr. gregory retallack was able to find evidence that supported the cataclysmic extinction during the permian. what was this piece of evidence? group of answer choices the absolute age of the siberian basalt flows the location of the impact event shocked quartz grains pieces of the meteor itself
Answer:In 1997, College of Oregon scientist Gregory Retallack revealed finding raised iridium levels and stunned quartz precious stones in Permian-Triassic rocks indications of an effect.
Explanation:The end-Permian mass eradication is the biggest of the Phanerozoic. In the quick fallout the marine environment was overwhelmed by microbial and networks with catastrophe taxa. Conceivable kill system incorporates an incredibly quick, unstable arrival of gases like carbon dioxide, methane and hydrogen sulfide. Siberian flood volcanism has been recommended as the most conceivable component to set off the monstrous arrival of ozone depleting substances from volcanic ejections and connection of magmas with carbon from thick natural rich stores or quick venting of coal-determined methane or enormous ignition of coal. A sharp Î'13C isotopic outing, quick vanishing of carbonate benthic networks and Î'18O information from conodont apatite recommend fast an unnatural weather change. The end Permian mass elimination happened in under 200,000 years.
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c. How did the Soviet Union
come to an end?
Answer:
The unsuccessful August 1991 coup against Gorbachev sealed the fate of the Soviet Union. Planned by hard-line Communists, the coup diminished Gorbachev's power and propelled Yeltsin and the democratic forces to the forefront of Soviet and Russian politics.
Explanation:
7. What is a pronatalist factor that might have made the total fertility rate higher in some years?
Answer:This entry focuses on the number of births per woman in a population. The most commonly used metric is the Total Fertility Rate (TFR) – or often simply ‘fertility rate’ – which measures the average number of children per woman.1
The global average fertility rate is around 2.3 children per woman today. Over the last 50 years the global fertility rate has halved. And over the course of the modernization of societies the number of children per woman decreases very substantially. In the pre-modern era fertility rates of 4.5 to 7 children per woman were common. At that time the very high mortality at a young age kept population growth low. As health improves and the mortality in the population decreases we typically saw accelerated population growth. This rapid population growth then comes to an end as the fertility rate declines and approaches 2 children per woman.2
The first section of the entry presents the global empirical perspective on the number of children per woman. The long second section presents the academic research that answers the question why the number of children per woman declined. Particularly important are 1) the empowerment of women in society and in relationships – through education, labor force participation, and strengthened women’s rights – and 2) the increased well-being and status of children.
Explanation:
The global total fertility rate, or average number of children a woman is estimated to have in her life, has been falling since the 1960s. Today, the total fertility rate (or TFR) is half of what it was five decades ago. But while women overall are having fewer children than in the past, total fertility rates still vary greatly among countries. Why, when, and if a woman has a child involves many complex societal, economic, and political factors.
1 Solve for the value of 'x'.
50°
to
120°
Answer: x=70
Explanation: Trust me
Explain two ways the use of predictive techniques could reduce the impact of
coastal flooding.
Two predictive methods to reduce the impact of coastal flooding are natural dune system and seawalls.
What is a Seawall?
A seawall is a type of coastal defence built where the water and related coastal processes directly affect the coastline's landforms. A seawall is built to shield populated regions, natural areas, and recreational places from the effects of tides, waves, and tsunamis. In order to shield the inland region from wave action and stop coastal erosion, a seawall is a structure composed of concrete, masonry, or sheet piling that is built parallel to the shore at the transition between the beach and the mainland or dune. A seawall is often a large structure built to withstand storm surges.
Hence, Two predictive methods to reduce the impact of coastal flooding are natural dune system and seawalls.
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What are the possible causes of the change in temperature during the Quaterinary period?
Answer:
At the start of the Quaternary, the continents were just about where they are today, slowing inching here and there as the forces of plate tectonics push and tug them about. But throughout the period, the planet has wobbled on its path around the sun. The slight shifts cause ice ages to come and go.
Making inferences in what ways do erosions affect the lives of humans? Think about:
2. Results of erosions.
The ways that erosions affect the lives of humans are:
An increased flooding that tends to displaced people from their homes Increased level of sedimentation in rivers as well as streams making the water not good for drinking.What consequences do erosions have?There is decreased capacity of the soil to store nutrients and water. subsoil exposure, which frequently has undesirable physical and chemical characteristics. greater runoff rates, wasting water and nutrients that would have been used to cultivate crops. newly planted crops are lost
Beyond the loss of agricultural land, soil erosion has other negative repercussions. In streams and rivers, it has increased pollution and sedimentation, blocking these waterways and resulting in a loss in fish and other species. Additionally, deteriorated soils are frequently less able to retain water, which can make floods worse.
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Describe the cyclic patterns of lunar phases and eclipses of the Sun and moon. (MAKE IT A PARAGRAPH LONG) (5+ Sentences)
Our Moon reflects rather than shines. The Moon is illuminated by sunlight in the same way that it is here on Earth during the day. We just don't always notice it.
A new Moon is formed when sunlight strikes the Moon's far side, which we cannot see without the assistance of a spacecraft from Earth. A full Moon occurs when sunlight reflects off the near side.
The rest of the month, we see portions of the Moon's daytime side, or phases.
These eight phases are: new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, and waning crescent, in that order. The cycle occurs once a month (every 29.5 days).
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What makes the United States and Canada leading industrial nations?
Think about:
Oceans and waterways
Due to their abundant natural resources, both nations are top industrial and agricultural powers.
Large forests, fertile soils, abundant water resources, and important quantities of iron ore, nickel, copper, gold, silver, and uranium are all present in the United States and Canada.
Both nations also have large coal, natural gas, and oil reserves as well as well-established distribution networks for these energy-producing fossil fuels.
The majority of academics concur that industrialization explains why wealthy countries have succeeded while remaining destitute ones have never successfully industrialized.
The United States and Canada are two wealthy countries that also happen to be among the top industrialized nations in the globe.
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karst features - winter park, fl. what kind of karst feature is shown by the problem 13 placemark (see photo in the placemark)? a. cave b. monadnock c. dry valley d. sinkhole
Using the features of karst, we got sinkhole is the karst feature shown by the problem 13 placemark.
Karst is the type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and the other characteristic features. Karst is associated with the soluble rock types such as limestone, marble, and gypsum. In general, the typical karst landscape forms when much of the water falling on surface interacts with and enters the subsurface through cracks, fractures, and the holes that have been dissolved into bedrock. After traveling underground, sometimes for long distances, this water is then discharged from the springs, many of which are cave entrances.
Hence, the karst feature shown in the problem 13 placemark is sinkhole.
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which farming practice(s) reduce(s) soil erosion? group of answer choices planting wind breaks, contour farming and terracing, and planting cover crops contour and terracing planting small trees planting cover crops
The farming practices that can be used to reduce soil erosions are:
Contour ploughing.Use shelterbelts (windbreak).Terracing.Soil erosion is the gradual erode of the soil, which reduces its fertility overtime. Of course, it can have a detrimental effect on agricultural production. There are several farming practice that can be done to reduce soil erosion, such as:
Contour ploughing. It's not only minimize erosion, but also reduces runoff by strong rainfall behind eidges.Use shelterbelts (windbreak). It will reduces the erosion caused by wind and provides shades when needed.Terracing. Platforms are cut into the steeper slopes, which allows crops to grow on (previously) unusable land and allows water retentuon.Learn more about soil erosion at https://brainly.com/question/17905503
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How can you protect the coastline using hard and soft engineering techniques
Hard engineering is a coastal management technique used to protect coasts, by absorbing the energy of waves, preventing erosion and flooding. They are highly visible man-made structures used to stop or disrupt natural processes
Explanation:Soft engineering is where the natural environment is used to help reduce coastal erosion and river flooding. At the coast, soft engineering is where a beach is used to absorb wave energy and reduce erosion. Through hard coastal protection strategies, we try to work against natural interactions in order to protect certain eras. Soft coastal protection strategies are methods to secure and/or restore coastal lines through a body of sand. The other option, soft Engineering, involves using natural defences to protect the coastline.
Which is NOT a reason that % of the world's population live between 20 degrees N and 60
degrees N latitude?
a. decent climate
b. hot summers
c. good vegetation
d. wet enough for agriculture
convices is determined by consumer
Hot summers is not a reason that % of the world's population live between 20 degrees N and 60 degrees of N latitude .
What are the 4 reasons for population distribution ?
Understanding the patterns of population settlement across the nation is one of the main outcomes of a population census. The spatial distribution of Cambodia's population, as revealed by the 2008 Census of Cambodia.
Multiple uses may be made of population distribution data among administrative regions. They often serve as the foundation for choosing the electoral districts. They offer the fundamental information needed to calculate population estimates and are helpful in relation to social, economic, and administrative planning.
Density and population distribution are two ideas that go hand in hand, therefore it makes sense to talk about them in the same chapter. However, the two ideas are unlike since distribution depends on location and density depends on ratio.
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when occurring in the atlantic ocean they are known as hurricanes. what are they known as when occurring in the western pacific? group of answer choices tropical breezes typhoons cyclones tsunamis
When occurring in the western pacific they are known as typhoons.
What is the difference between a typhoon and a hurricane?Between typhoons and hurricanes there is a difference, the difference between the two occurs in different ocean basins.The disturbance must exhibit circular circulation and wind speeds of at least 119 km per hour or 74 mph in order to be classified as a hurricane.Hurricanes known as cyclones in the Indian Ocean, including the Bay of Bengal and Arabian Sea.The approximate diameter of a mature hurricane is about about 600 km.When fully grown, hurricanes can release a tremendous amount of energy. One cyclone can produce thermal energy equivalent to a 10 megaton nuclear bomb bursting every 20 minutes. Additionally, they are substantially larger than other powerful storms like tornadoes. However, they also form a vital part of the vast and intricate natural system that enables us to thrive on our planet.Learn more about hurricane here: brainly.com/question/14836473
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difference between spring and artesian well
Answer:
Springs are often confused with flowing artesian wells. An artesian well is a hole or boring that has been drilled into a water-bearing formation or "aquifer" that is under pressure. The water in an artesian well rises above the top of the aquifer (water-bearing formation) until the pressure is equalized
Explanation:
what kind of drainage network is likely to form in a landscape underlain by a uniform substrate with shallow slope?
The kind of drainage network that is likely to form in a landscape underlain by a uniform substrate with a shallow slope is the dendritic pattern.
A drainage network is an interconnected group of streams that collects water over a large area. There are at least five major patterns of drainage network:
Dendritic looks like branches connecting to the trunk.Radial: looks like a cone, flowing outward from a mountain peak.Rectangular: fractures break up the ground, channels and streams follow pre-existing fractures and join each other at the right angles.Trellis: resembling a garden trellis.Parallel: several streams with parallel courses.Learn more about drainage network at https://brainly.com/question/13697716
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if you found a line of volcanic peaks a few hundred miles long in which the volcanoes were progressively older toward one end of the line, what probably created them? if you found a line of volcanic peaks a few hundred miles long in which the volcanoes were progressively older toward one end of the line, what probably created them? a divergent boundary a hot spot a transform boundary a convergent boundary
Answer: a convergent boundary
Explanation: youre welcome
How is the climate shaped by planetary winds and moisture belts?
Our planet's rotation is to blame for this. 0 Weather systems that are in motion are caused by planetary wind belts (air masses and hurricanes). This explains why the west is where the majority of our weather originates. The polar front jet stream and the subtropical jet stream are seen in this graph. As we now know, the Coriolis Effect creates three main worldwide wind belts from three different types of prevailing winds on Earth. They are given names based on where they come from and where they blow.
Throughout the year, planetary or permanent winds blow from high-pressure bands to low-pressure belts in the same direction. They sweep across a huge region of continents and oceans. They are polar easterlies, westerlies, and easterly winds.
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Imagine that you’re a student who lives in Miami, Florida, and your family has decided that it’s time to move to a new home. Which of the following situations would be an example of an external migration?
A. moving to Tampa Bay, Florida
B. moving a few streets away
C. moving to Atlanta, Georgia
D. moving to Mexico
Please select the best answer from the choices provided
Imagine that you’re a student who lives in Miami, Florida, and your family has decided that it’s time to move to a new home. an example of external migration is moving to Mexico. Option D
What is external migration?Generally, Migration to a foreign state, nation, or continent is an example of external migration.
Emigration is the process of moving from one nation to another. The process of relocating to a new nation is known as immigration. Return migration is the process of going back to the place from where one originated.
In conclusion, Imagine that you are a student who currently resides in Miami, Florida, and that your family has come to the conclusion that it is time for all of you to relocate to a different residence. Moving to Mexico is an example of migration to a different country. The D Option
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Answer: D) moving to Mexico
Explanation:
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What is the relative location of the Great Lakes?
Answer:
The lakes—Superior, Michigan, Huron, Erie, and Ontario—are located in east-central North America and provide a natural border between Canada and the United States
during what time of the year is the arctic sea ice extent normally at its lowest? explain the connection to seasonal cycles.
In September the arctic sea ice extent is normally at its lowest
What is the connection to seasonal cycles?
During the 10th month of the year i.e. September, the extent of the Arctic sea ice is at its lowest. During the summers and spring, the Earth's surface receives maximum insolation. As a result of this, the ocean surface receives insolation and gradually warms up. It is to be understood that on account of the high specific capacity of water, the water cools and warms up slowly. Hence, there is a time lag between the duration of insolation and the consequential appearance in the increase of the temperature of the oceanic water.The ocean bodies begin to lose their buoyancy after summer ends, and this continues to be the period when there is the least amount of ice. After this, sea surfaces begin to lose heat and sea ice development begins.Learn more about Arctic sea ice from the link below
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Which diagram shows an oceanic-oceanic convergent boundary? describe what occurs at this type of plate boundary
Part C of the following diagram shows an oceanic- oceanic convergent boundaries.
What are Convergent boundaries?A convergent boundary is a spot-on Earth where two or more lithospheric plates collide. One plate will always slide under another during subduction. Ocean-ocean, ocean-continent, and continent-continent are the three different forms of convergent boundaries.
What is Oceanic-Oceanic Convergent boundaries?Oceanic-continental convergent borders are created when tectonic plates with primarily oceanic lithosphere collide with plates with primarily continental lithosphere.
Compared to the continental lithosphere, the crust is denser because it has more minerals rich in iron and magnesium. The oceanic lithosphere plate will buckle beneath the continental plate and plunge into the warm asthenosphere when these two very distinct plates intersect. Subduction is the term for this action. The melting occurs as the subducting plate is pushed further into the mantle. This generates magma, which rises and erupts. This creates an island arc, a line of volcanoes. Examples of island arcs include Japan, Indonesia, the Philippines, and the Aleutian Islands of Alaska.
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Review the information and write a brief essay about how the international community is assisting with AIDS prevention and treatment in Africa.
Can anyone help on this quick, just need it at least as help information sucks on edmentum.
In sub-Saharan Africa, teenage girls and young women account for 25% of new HIV infections.Women account for 56% of infections among adults, which is a result of gender disparities, limited access to healthcare and educational opportunities, and poverty, among other factors.
According to the WHO, reducing new infections will require increased condom usage, long-lasting initiatives to promote changes in sexual behavior, accessible means of infection prevention in high-risk populations, and extended mother-to-child transmission prevention therapies.
All things considered, maintaining the advancements Africa has made thus far and achieving the world's development goals will depend on targeted policies, strong leadership from governments and civil society, and involvement of individuals living with HIV.
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Answer:
Your answer should include information about the Global Fund, which is the international fund developed in 2001 to raise money to fight HIV/AIDS, Tuberculosis (TB), and malaria.
Your answer should include information about the President's Emergency Plan for AIDS Relief (PEPFAR), which started in 2003 and has raised billions of dollars to combat AIDS, TB, and malaria in Africa and other countries.
Your answer could provide information about the supply of preventative care, such as funding for or shipments of condoms and antiretroviral drugs.
Explanation:
this is the answer from edmentum (not a full answer)
which is the correct order to explain the idealized development of a nappe from originally undeformed horizontal strata by increasingly intense deformation?
An upright open symmetrical fold forms, an inclined asymmetrical fold forms, an overturned fold forms, a recumbent fold forms, a thrust fault forms, a large-offset thrust sheet develops a nappe.
What is Nappe?A rock sheet called Nappe is one that has been transported far from its initial location by tectonic pressures. A thrust sheet or similar block of rock that has moved more than 2 km from its original location as a result of tectonic processes is what is referred to as this phenomenon.
Tectonic movements: what are they?
According to the widely recognised scientific hypothesis known as plate tectonics, the Earth's lithosphere is made up of many sizable tectonic plates that have been steadily moving for nearly 3.4 billion years.
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Differentiate between south-west trade winds and north-east trade winds
Why are there many different types of soils?
Answer:
The climate or type of plant life....
Which location suffered two deadly earthquakes in the 20th 1st century?
Answer:
Indonesia, Sumatra, and Japan, Tōhoku, suffered the deadliest earthquakes in the 21st century
Explanation:
I believe you meant 21st century. If you meant 20th, then the answer is China and Japan bud. They suffered more than 10,000 fatalities, which is absurd.
the gust front occurs group of answer choices on the lee shore of the great lakes. during the development of thunderstorm clouds. at the leading edge of a thunderstorm downdraft. near the anvil part of a thunderstorm cloud.
The gust front occurs at the leading edge of a thunderstorm downdraft .
What is Thunderstorm ?
A thunderstorm, also known as an electrical storm or a lightning storm, is a type of storm in which lightning is present and produces the audible sound of thunder in the atmosphere of the Earth. Thundershowers are the name for relatively weak thunderstorms. A cumulonimbus is a form of cloud where thunderstorms develop. Strong winds are typically present along with them, and heavy rain, snow, sleet, or hail are frequently produced.
However, some thunderstorms result in little to no precipitation at all. A squall line, often known as a succession of thunderstorms, can form or become a rainband. Large hail, powerful winds, and tornadoes are just a few of the most hazardous weather events that may occur during strong or severe thunderstorms.
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What are four types of plate movements?
Answer:
The flow of the mantle causes tectonic plates to move in different directions. When the edges of plates meet, four things can happen:
slip. play. two plates slide. past each other.
collision. play. two plates crash. and fold up.
spreading. play. two plates move apart. from each other.
subduction. play. one plate sinks. below the other.
Explanation:
