The geologic timescale's three periods are separated from one another by two massive extinction events.
The majority of the geological time scale's periods and epochs have been divided up based on substantial changes in the fossil record. For instance, as was already said, the end of the dinosaur era precisely marks the transition between the Cretaceous and Paleogene.
What is mass extinction?Early rock layers contain a lot of fossils, but later rock layers don't have any fossils. From small sea organisms to enormous dinosaurs, a diverse variety of animals and vegetation abruptly vanished.
When at least the majority of all species disappear in a reasonably short period of time, there has been a mass extinction. Over the length of our planet's history, it has only happened a few times. Around 250 million years ago, there was the biggest mass extinction event, during which perhaps 95% of all species perished.
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Order the events that form an angular conformity from the first event at the top to the last event at the bottom.
Rocks are deposited horizontally.
Rocks are folded.
Uplift occurs, and folded rocks are eroded.
Horizontal rocks are deposited over eroded tilt beds.
The events that, starting with the topmost event and ending with the bottommost event, form an angular conformance of rocks.
The placement of rocks is horizontal. Rocks are folded in two. Folded rocks are degraded as a result of uplift. Over degraded tilt beds, horizontal rocks are deposited.
A contact between geological layers when the younger, overlaying rocks are flat and the older, underlying rocks are inclined is known as an angular unconformity. Nonconformities, disconformities, and angular unconformities are the three categories of geologic unconformities. When originally horizontal rocks are twisted, elevated, and eroded, an angular unconformity results. Younger rock layers are deposited horizontally on top of the older, inclined ones once erosion has stopped. An angular unconformity separates the horizontal and titled rocks.
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which of the following is a key part of the formation of most natural arches?
A- jointing and other fracturing
B- folding of soft rock layers
C-volcanic eruptions
D-spheroidal weathering
E- none of the above
Most naturally occurring arches are formed by the folding of soft rock strata. As a result, choice (B) is the appropriate approach.
What is a natural arch?Natural landforms with arches that have developed with openings underneath are known as natural bridges, natural arches, or (less frequently) rock arches. When inland cliffs, coastal cliffs, fins, or stacks are eroded by the sea, rivers, or weathering, natural arches frequently result (subaerial processes).
The majority of naturally occurring arches are made of vertically stacked sea stacks and narrow fins of sandstone or limestone. Over geologic time spans, erosion causes the formations to get smaller.
Therefore, option (B) is accurate.
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What led to the decline in poverty in China?.
The high financial development in China and Southeast Asia was the clarification for a huge decrease in neediness in these nations. They pursued an export-oriented industrialization strategy, which is why they experienced such robust economic growth.
What is the primary reason for China's rapid economic growth?Economists typically attribute a significant portion of China's rapid economic growth to two main factors:huge scope capital speculation (supported by enormous homegrown reserve funds and unfamiliar venture) and quick efficiency development.
What are China's four most significant economic growth strategies?The following are China's top five key reform areas:1) the "new macroeconomic policy responses" to stabilize growth in the near future; 2) the "transform the economic growth pattern" to further boost consumption; and 3) the improvement of "competition" to allow the market to play the primary role and encourage participation from the private sector.
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earthquakes occur periodically along fault lines. in between such earthquake events at a transform boundary, the lithospheric plates are
The lithospheric plates at a transform boundary are storing potential energy between earthquake episodes along fault lines because they are experiencing resistance as they try to pass one another.
Give a brief account on earthquakes.A abrupt release of energy in the Earth's lithosphere, which produces seismic waves, causes the Earth's surface to shake during an earthquake. A quake, tremor, or temblor are other names for it. Earthquakes can range in size from those that are so little that no one can feel them to those that are strong enough to uproot entire cities, launch objects and people into the air, and wreck essential infrastructure. Seismic activity refers to the quantity, variety, and magnitude of earthquakes that take place in a region over a given time period.
What is referred to as seismicity at a particular location on Earth is the typical rate of seismic energy release per unit volume. Seismic rumbling is another name for tremors, which are not earthquakes.
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why might the population of fish along the west coasts of continents increase if thermohaline circulation shuts down
There would increase in the large populations of fish along the west coasts of most continents because the currents would bring them in from the western direction if the thermohaline circulation shuts down.
The population of fish along the west coasts of continents increase if thermohaline circulation shuts down. ocean currents also flow thousands of meters below the surface. These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature and salinity . This process is known as thermohaline circulation. thermohaline circulation are deep water formation, spreading of deep waters partly through deep boundary currents, and upwelling and near-surface currents—together leading to a large-scale deep overturning motion of the oceans.
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how do isotherms on global temperature maps reflect the unequal heating and cooling properties of land and water, and ocean currents and upwellings?
Isotherms frequently bend along coasts. This is brought on by the fact that land and water are heated differently and that winds tend to blow along coastlines.
The upwelling of frigid deep ocean waters and ocean currents are also significant. The California Current, which travels south down the Californian coast, and the Gulf Stream are two examples of ocean currents. The variables that affect global winds are variations in air pressure and global winds.
Isotherms from the higher to the lower region, wind blows. Due to the earth's rotation, this does not happen in a straight line.
Global winds and air pressure variations both have an impact on precipitation. The global precipitation rate is influenced by the pressure differential.
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what time of year is the river at the floor of the grand canyon most likely in shadow of the canyon walls?
The correct answer d) Winter
Why is the Grand Canyon so well-known?
The deeper depths of the Canyon reveal the Earth's history, with rocks dating back 250 million to 2 billion years. The Grand Canyon has been described as "the basement of history" in one famous remark.
What is the winter season?
Spring (March, April, May), summer (June, July, August), autumn (September, October, November), and winter are the four seasons (December, January, February).
What happens during the winter season?
Winter brings snow and frigid temperatures to many parts of the country. The winter solstice occurs when the Sun's elevation in relation to the North or South Pole is at its most negative value; that is, when the Sun is farthest below the horizon as measured from the pole.
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Full Question :What time of year is the river at the floor of the Grand Canyon most likely in the shadow of the canyon walls?
a) Summer
b) Spring
c) Fall
d) Winter
g homo habilis is the first species of the genus homo. it is [ select ] similar to other homo species, like homo erectus, than to the australopiths.
Sahelanthropus, Orrorin, Ardipithecus, Australopithecus, and Paranthropus are just a few of the genera that exhibit postcranial transformation and canine reduction throughout the first four million years or so of hominid evolution. There is a concurrent change in the hominid fossil record as the Pliocene epoch came to an end and the world climate was changing about 2.5 million years ago. Something novel arose in this setting, both physically and behaviorally, as it became cooler. The genus Homo originated from this.
The commencement of the transition from primordial, large-brained, stone tool-making, meat-eating apes that spread out across the globe to the species Homo's beginnings in Africa is marked by this change. Three species, Homo habilis, Homo rudolfensis, and Homo erectus, are considered to be the earliest members of the human genus. It is well known that H. habilis was the first species to produce stone tools and that it still possesses basic characteristics that connect it to australopiths. Aside from the fact that H. rudolfensis shared both time and space with other early Homo and had a larger brain and set of teeth than H. habilis, little is known about this species. Thanks to its extensive fossil record, we now have a better grasp of the paleobiology and evolution of the more complex H. erectus. With a physique designed for contemporary striding locomotion, H. erectus was the first fully committed, obligate biped to emerge outside of Africa. It was also the first member of the human ancestry to leave Africa. The first Homo species are the ones who tipped our evolutionary history's scales away from the more ape-like direction and toward the more human one.
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which of the following characteristics is associated with divergent plate boundaries? group of answer choices
A diverging boun dary'srelation to geological activity and landforms. Diverging plates rubbing against neighbouring plates causes earthquakes. Land features including rift valleys, mid-ocean ridges (volcanic), and common faults appear.
Basaltic magmas are the signature of divergent boundaries. Most shield volcanoes are found along divergent borders. Although it was covered by land and not ocean, the Americas were connected to Europe and Africa.
What three divergent plate boundaries are there?
Continental rift zones and mid-ocean ridges are the two main categories of divergent boundaries based on their location. There are weak areas in the continental lithospheric plate where continental rift zones can form.
What five distinct features might you discover at a diverging boundary?
Spreading borders are divergent barriers where fresh oceanic crust is produced to fill in the void as the plates move apart.
Multiple lines of evidence show that new oceanic crust is emerging at these seafloor spreading centers:
There are several lines of evidence that show these seafloor spreading centers are where new oceanic crust is forming:
Time since the crust formed:
Sediment thickness:
Heat transfer:
Magnetization rollbacks
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Shifting the current economy, which is fueled primarily by nonrenewable energy resources, to one that is reliant on a mix of renewable energy resources will drastically reduce pollution, greenhouse gas emissions, and biodiversity loss. In short, it will lead to a more sustainable energy future.
Use the dropdown menus to match the following renewable energy resources with their associated methodologies.
Renewable Energy Resource
Methodology
Uses wind potential to produce electricity
Uses the most abundant chemical element as fuel
Uses water movement to produce electricity
By switching from the existing economy, which is predominately powered by nonrenewable energy sources, to one that depends on a variety of renewable energy sources, pollution, greenhouse gas emissions, and biodiversity loss would be significantly decreased.
1. Geothermal Energy: This type of energy uses the heat that the earth's interior holds to warm and cool buildings. Geothermal energy may also be utilised to run enterprises and generate power.
2. Hydrogen: This fuel uses a plentiful chemical element.
3. Wind turbines—Utilize the potential energy of the wind to generate electricity The wind's potential energy is transformed first into mechanical energy by the turbine's rotating wings, then into electrical energy.
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electron spin resonance dating would be most useful in attempting to date which object? group of answer choices a fossilized tooth an ancient stone artifact an old lava flow a limestone cave deposit
The correct answer (a) fossilized tooth
What is the purpose of electron spin resonance dating?
One of CENIEH's four geochronology laboratories, the Electron Spin Resonance (ESR) laboratory, is primarily concerned with dating geological and/or archaeological materials such as dental enamel or optically bleached quartz grains taken from sediment.
What exactly is a fossilized tooth?
Teeth fossilize by a process known as permineralization. Water transfers minerals contained in the sediment as it seeps through sediments over the teeth. These minerals accumulate in the pore spaces of the tooth, causing it to fossilize.
When something reaches a specific age, it becomes a fossil. Though there is no set age, anything over 10,000 years old is considered a fossil. The oldest fossils discovered date back more than 3.5 billion years.
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Full Question:Electron spin resonance dating would be most useful in attempting to date which object?
a fossilized tooth
b.an ancient stone artifact
c.an old lava flow
d.a limestone cave deposit
rockfalls are common in the steep granite valleys of
Answer:
Yosemite National Park
Explanation:
explain why the court ruled that groundwater in southern nebraska should be considered part of the republican river.
In southern Nebraska, there is lot of rivers are present, because of this in Nebraska there is no shortage of water so, the court ruled that groundwater in Southern Nebraska should be considered part of the republican river.
The Republican River rises in the High Plains of eastern Colorado and flows east for 453 miles (729 km) through the states of Nebraska and Kansas in North America's central Great Plains.
The North Fork Republican River and the Arikaree River converge just north of Haigler in Dundy County, Nebraska, to form the Republican River. Within a few miles of Benkelman, Nebraska, it connects with the South Fork Republican River. Northeastern Colorado's High Plains are where the three tributaries begin. The river travels generally eastward along Nebraska's southern border from the junction, passing past Swanson Reservoir and Harlan County Reservoir, before bending southward into the Smoky Hills region of Kansas. In Kansas's Junction City, the Republican River and Smoky Hill River combine to form the Kansas River.
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Where did the following mass-wasting event take place? Quarrying undercut a 600-m-high cliff and triggered a rockfall of over 10 million cubic meters that buried a nearby town and its inhabitants to a depth of 10 to 20 m.Choose one:A. Elm, the Swiss Alps (1881)B. Armero, Colombia (1985)C. Yosemite National Park (1996)D. Gros Ventre Slide, Wyoming (1925)
The mass-wasting event described in the question took place at Elm, the Swiss Alps (1881). (Option A)
Mass wasting or mass movement refers to the movement of rock and soil moving down slope due to the influence of gravity. These events are often caused by changes that over steepen slope angles and weaken slope stability, such intense rainfall, rapid snow melt, earthquake shaking, storm waves, stream erosion, volcanic eruption, and human activities. These events happen very rapidly moving as a flow. Examples of mass wasting include rock falls, slumps, and debris flows. The mass wasting event described in the question took place at Elm, the Swiss Alps (1881). It was the rockslide event which occurred as a mining disaster in Elm, Canton of Glarus, Switzerland, killing 115 people and destroying 83 buildings on September 11, 1881.
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what temperature warm, cool, hot, or cold and what moisture conditions dry or humid are associated with the four basic types of air masses
According to four major source regions with respect to latitude, air masses are frequently categorized. The four are tropical (warm and humid), polar (cold), and arctic (extremely cold) (warm).
An air mass in meteorology is a volume of air whose temperature and humidity are specified. In thousands or hundreds of square miles of space, air masses adapt to the properties of the area below them. Their originating regions—continental or maritime—and latitude are used to categorize them. Polar or arctic air masses are described as colder, whilst tropical air masses are described as warmer. Superior and continental air masses are dry, but maritime and monsoon air masses are wet. Air masses with varying densities, temperatures, or moisture properties are divided by weather fronts. Once an air mass has left its origin area, underlying vegetation and water bodies can quickly change the air mass's characteristics. The features and modification of an air mass are addressed by classification schemes.
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the depth in which the soil moisture content is relatively constant between the summer and winter periods is most nearly the definition of:
The definition of Depth of Seasonal Moisture Variation is most closely associated with the depth at which the soil moisture content is essentially consistent between the summer and winter seasons humidity.
Humidity is measured or discussed in a variety of ways by meteorologists. Relative humidity is one of the crucial measures they make because it tells you how dry the air actually feels. The temperature and the amount of moisture in the air both affect relative humidity. The relative humidity falls when the temperature rises while the moisture content remains constant.
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which of the following is true of a reflectivity image? it can be used to forecast future storm development it shows the location and intensity of precipitation it shows the dewpoints of an area it shows the winds associated with a dryline
Answer:
Ans C. It shows the location and intensity of the precipitation
Explanation:
next time put an image it was hard to figure out the answer but i got you.
Water tends to moderate climate. Why is it warmer in the winter and cooler in the summer in cities located near the ocean or large lakes?.
The correct answer (B) Water has a high specific heat and therefore changes temperature more slowly than most other substances.
Why is the climate more temperate in areas close to the ocean?
For instance, coastal locations are typically more temperate because the ocean absorbs heat more slowly than land does. Many coastal areas, including California, experience upwelling, which creates a cold differential in air temperature over the ocean and land that is ideal for frequent summer fog.
What is moderate climate called?
It is neither extremely hot nor extremely cold in the Temperate Zone. In both hemispheres, the Temperate Zone is situated halfway between the Torrid Zone and the Frigid Zone.
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Full Question:Water tends to moderate climate. Why is it warmer in the winter and cooler in the summer in cities located near the ocean or large lakes?
A.Water has a low specific heat and therefore changes temperature faster than most other substances.
B.Water has a low specific heat and therefore changes temperature slower than most other substances.
C.Water has a high specific heat and therefore changes temperature more slowly than most other substances.
D.Water has a high specific heat and therefore changes temperature more quickly than most other substances.
What is the point of satire in Gulliver's Travels?.
In Gulliver's Travels, Swift uses satire to highlight the political circumstances in England. He uses satire in a way to highlight England's flaws. In Gulliver's Travels, satire exposes human folly.
Give a brief account on Gulliver's Travels.The most brilliant, scathing, and divisive of Swift's satires, Gulliver's Travels is regarded as his greatest work. The book resists overly simplistic explanations since it is written in an objective tone and with an air of somber truth. Is it essentially mocking humanity or is it misanthropic in nature? The numerous cultures and societies that Gulliver encounters during his travels appear to be used by Swift to lampoon many of the mistakes, foibles, and weaknesses that people are prone to. In the first section's combative, contentious, but ultimately insignificant Lilliputians and the third segment's insane, impractical pedants and intellectuals, imbalanced beings lacking in common sense and even decency are depicted.
The Houyhnhnms, in contrast, are the model of morality and simplicity. Gulliver's prideful identification with these horses and his subsequent contempt for fellow humans, however, show that he has also become unbalanced and that people are unable to aspire to the virtuous rationality that Gulliver has glimpsed.
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Cold fronts represent areas where a package of cold air is advancing to replace a package of warm air. What type of weather would you expect to form at the boundary between these two air masses?.
Expect to form at the boundary between these two air masses thunderstorms in rainy season.
In a chilly the front set-up, the boundary among the bloodless and heat air hundreds is tremendously steep (see below), normally inflicting the nice and cozy air in the front of it to upward thrust rapidly. This growing air creates energetic, billowing cumulonimbus clouds main to showers and thunderstorms.
A bloodless the front is described because the transition area wherein a chilly air mass is changing a hotter air mass. Cold fronts usually circulate from northwest to southeast. The air in the back of a chilly the front is exceedingly less warm and drier than the air beforehand of it."); display: inline-block A the front is taken into consideration to be a bloodless the front whilst the bloodless air advances closer to the nice and cozy air and undercuts it. This form of frontal device is related to the fast ascent of the air, main to cumuliform clouds and convection.
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What is the primary cause of the decline in poverty rates in China?.
The introduction of free trade and entrepreneurship is the main reason for the fall in poverty rates in China.
Is China succeeding at eradicating poverty?The number of people living in extreme poverty in China has decreased from 748.5 million to 0.3 percent over the course of several decades of fast economic expansion. The poverty rate has decreased to the highest in China among the top 15 most populous emerging nations.
China's income per capita is increasing far more quickly than any other region of the world. The foundation for reducing poverty is ongoing strong economic growth. The rural workforce largely migrates to non-agricultural businesses. China's export volume has quickly expanded since the reform and open-up policies of free trade have been carried out.
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Coal, a fossil fuel created by the remains of plants that grew millions of years ago, served as a substitute for fuel wood during the sixteenth century.False
Plant and animal leftovers from long-dead species are used to produce coal and crude oil.
The primary energy source for an ecosystem is the sun.. Sunlight energy is captured by plants to create highly energetic compounds that are passed on to animals farther down the food chain. The high energy molecules are currently kept as fossil fuels and are released when these plants and animals die. Remember that the sun provided the energy necessary for the molecules to form; as a result, the sun is the source of the high-energy molecules found in fossil fuels such as coal.
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The shape of a volcano is a reflection of the type of eruptions that have occurred throughout the volcano's lifespan. Which of the images below shows a volcano that most likely oscillated between effusive and explosive eruptions many times during its lifespan?
C
The image that shows a volcano that is most likely oscillating between effusive and explosive eruptions many times during its lifespan is attached below.
Stratovolcanoes, also known as composite volcanoes, are (almost) symmetrical conical volcano that was built by many layers of hardened lava. When highly viscous magma erupted, it doesn't flow far from the eruption point. Over a long time, the hardened lava layers over each other and formed a cone-shaped volcano.
The image below shows a cross-section of a stratovolcano. The interlayer of eruption material deposits suggests that the volcano oscillated between various eruptive styles during its lifespan.
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Which are accurate descriptions of the social structure of the spanish colonies? choose three.
The accurate descriptions of the social structure of the Spanish colonies are:
Peninsulares were native-born Spaniards who held all the important positions in the colonies.Creoles were of Spanish descent but were born in America and therefore seldom held government positions.Mestizo were of mixed race, Spanish and Indian, and were generally poor, if free.Social institutions and established patterns of connections are referred to collectively as the social structure since they are structured into a society. It's a building that people who live in a community developed. The social structures of a society that govern how people interact and coexist are known as its social structure. It is frequently used to describe the idea of social transformation within a society.
The caste system that existed in Spanish colonies is being followed today. Following is a description of the social hierarchy in the Spanish colonies: Africans, Native Americans, Mestizos, Creoles, and Mestizo-Mestizo peoples of the peninsula.
The complete question is, "Which are accurate descriptions of the social structure of the Spanish colonies? Choose three.
Peninsulares were native-born Spaniards who held all the important positions in the colonies.Milanos were on the lowest rung on the social ladder and were little more than slaves.Creoles were of Spanish descent but were born in America and therefore seldom held government positions.Mestizo were of mixed race, Spanish and Indian, and were generally poor, if free.The native peoples were well paid for their hard work in the fields and mines."Learn more about Social Structures here:
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Which election reform, adopted in the late nineteenth and early twentieth centuries, was aimed at preventing vote buying and voter intimidation?.
The secret ballot is an election reform that was used in the late nineteenth and early twentieth century that aids in preventing vote buying and voter intimidation. It's a voting procedure that guarantees all ballots are cast in secret, preventing the voter from being swayed by third parties.
what is a ballot?
A ballot, which can be found as a sheet of paper or a tiny ball used in secret voting, is a mechanism used to cast votes in an election. Early in the 16th century, it was first employed in Italy as a little ball (see "blackballing") to record voters' preferences.
A different ballot is used by each voter; they are not swapped. A ballot can be a simple piece of paper on which each voter writes the name of a candidate in the most basic elections, but in government elections, pre-printed ballots are used to ensure the confidentiality of the votes. At the polling place, the voter places their ballot in a box.
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Rebecca notices a huge crack in a large boulder in her garden. She realizes that the crack was caused by frost wedging. Place the steps of the frost wedging process in order.
Frost wedging is the technique by which water seeps into cracks in a rock, expands on freezing, and hence enlarges the cracks (figure five. five). The effectiveness of frost wedging is associated with the frequency of freezing and thawing. Frost wedging is most effective in weather like Canada's.
Frost wedging is a mechanical weathering method as a result of the freeze-thaw movement of water which is trapped between cracks in the rock. whilst water freezes, it expands and applies pressure to the encompassing rock forcing the rock to accommodate the enlargement of the ice.
Frost wedging is a shape of bodily weathering that breaks down rocks via the freezing and thawing process. First, water enters the rock via cracks and pores traveling deep within the rock. as the water freezes, it expands into the rock, causing the cracks and pores to grow.
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What is the main idea of Truth's Ain't IA Woman speech?.
The main idea of Ain't I a woman? is that all women should be treated equally as men. They should have all the rights which men have.
Women are generally treated not as equal to men. All men are seen with great respect in the family. They decide everything. They are the ones who take important decisions of the family.
It is always taught to the kids to respect all the members of the family especially the men of the family. The old women of the family are responsible for all the wrong learnings being taught to their children. They themselves have lowered down the status of women in the family.
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which of the following is not a setting that can form a desert? multiple choice near cold, upwelling ocean currents in the subtropics due to atmosphere circulation patterns in a rain shadow of a mountain range in cold, dry polar regions all of these are settings that can form deserts.
If any of these circumstances occur, the area cannot become a desert. Due to the stresses caused by the significant temperature differences between day and night.
It result in the rocks breaking into pieces, deserts are created via weathering processes. While it rarely rains in deserts, there are the rare downpours that can cause flash floods. When heated rocks are exposed to rain, they may break, and the debris that is left behind is thrown across the desert floor, where it is further worn by the wind. Sand and dust particles are picked up by this, and because they may stay in the air for a long time, they can occasionally cause sand storms or dust storms to form. Sand grains carried by the wind can erode the surface of any solid object they come into contact with.The wind flattens down rocks and creates consistent sand deposits. The granules become level sheets of sand or are piled high in sand dunes that are in motion.
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In flowing water, the upstream side of an obstruction is subjected to the ______ of abrasion.
The side of a barrier that faces upstream in flowing water is susceptible to the most abrasion.
Rock is ground away by a process called abrasion. Abrasion occurs when sediment in flowing water contacts the stream bed repeatedly. Abrasion causes the sediment's particle size to decrease.
There are three main ways that abrasion happens:
Rock surfaces are gently ground by glaciation as they are carried by ice. Solid items moving through river channels come into touch with the bed & walls on their abrasive surfaces. Things carried by waves crashing on beaches Sand or tiny stones are transported by wind.Learn more about the abrasion at
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Scientists believe there are several basic requirements needed for life to exist on a planet. These include the presence of liquid water and a source of energy. What characteristic of earth allows water to exist as a liquid?.
Life wishes chemical reactions to take area in an effort to benefit strength, develop, and remove waste. Liquid water is a liquid that lets the chemistry of life take location. it's also a polar molecule that permits maximum different molecules to be dissolved. because of this, we name water a “solvent”.
Liquid water is a crucial requirement for life on the earth as it is capabilities as a solvent. it's far able to dissolve materials and enable key chemical reactions in the animal, plant, and microbial cells.
The orbit must lie in the “liveable area” wherein the exoplanet's surface is just the proper temperature for liquid water to exist. each shape of life we understand calls for liquid water, so an exoplanet too close or too long way from its host celebrity is less probable to incorporate lifestyles.
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