two processes are involved in the formation of a sand dune. which two processes best describe how a sand dune forms?
Answers
Sand dunes are natural formations of sand that have been shaped by the forces of wind and water. The formation of sand dunes involves two processes - erosion and deposition. These processes occur simultaneously and are responsible for the formation and growth of sand dunes.
Erosion is the process by which sand particles are removed from the surface of the land. Wind erosion is the most important process in the formation of sand dunes. When the wind blows across a sandy surface, it picks up loose sand particles and carries them along. As the wind speeds up, it can pick up larger sand particles and move them further. This movement of sand particles creates a process called abrasion, where sand particles rub against each other and smooth out their surfaces.
Deposition is the process by which sand particles are deposited in a new location. As the wind slows down, it drops the sand particles it was carrying. If the wind slows down enough, the sand particles will be deposited in the form of a sand dune. The deposition of sand particles is also influenced by other factors such as the availability of sand and the strength and direction of the wind.
The combination of erosion and deposition creates the classic crescent shape of sand dunes. The wind blows sand up the gentle slope on the windward side of the dune and then drops it over the steeper slope on the leeward side. This process of windward migration and leeward deposition causes the dune to move in the direction of the prevailing wind.
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Related Questions
1. Chinese investment in Africa since the 1990’s
A. Is motivated by the revolutionary ideal to unite working class people of the Third World and build important alliances to check global capitalism
B. Is comprised of large state investments in infrastructure (railways, ports, bridges, and highways) and small Chinese businesses, run by Chinese migrants and settlers in different African countries
C. Has mainly been interested in mining operations to tap into minerals and raw materials for manufacturing in China
D. Both A and B
Answers
Chinese investment in Africa since the 1990s can be described as primarily driven by a desire to extract resources for the Chinese economy while also building important infrastructural and political alliances on the African continent.
While China's early engagement with Africa was shaped by revolutionary ideals that sought to support anti-colonial struggles, the country's more recent investments in the region have been driven by a mix of economic and strategic objectives.
China's investments in Africa since the 1990s have included large state investments in infrastructure such as railways, ports, bridges, and highways.
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Thematic, or themed, maps contain what kind of information?
Answers
Answer:
Qualitative
Explanation:
They are qualitative because they show locations and spatial distributions of certain geographical features.
in the image above, a stream from the land on the right enters the ocean on the left in the lower part of the picture, and another does the same near the top of the picture. what happened where the streams met the ocean?
Answers
When streams meet the ocean, they manage to reach their base level, erode their banks, and promote the migration of meanders.
We can arrive at this answer because:
When the stream meets the ocean, it means that it has reached its base level, with the meeting of the ocean that is at low altitudes.The action of low altitude allows for an elevation of the work of the stream waters, which gradually increases as the stream descends to meet the ocean.With that, the stream manages to erode its banks with greater intensity, due to the high work and the descending movement.With this, the stream can follow stones and pieces from the banks into the meander, which begins to move over time, as this system repeats itself.In this case, when the stream meets the river, the entire path system to that meeting is affected, due to the change in altitude.
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how was storm Thurman time as governor of south Carolina significant as states politics changed??
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Storm Thurmond served as Governor of South Carolina marked the shift towards more conservative and racially divided political landscape.
Storm Thurmond served as Governor of South Carolina from 1947 to 1951, during a time of significant political and social change in the state. Thurmond was a staunch segregationist and supported the Jim Crow laws that were in place at the time.
Thurmond's time as governor was significant in the sense that it marked the beginning of a shift in South Carolina politics towards a more conservative and racially divided political landscape. Thurmond's policies and actions, such as the creation of the State Development Board and the establishment of the South Carolina Ports Authority, were aimed at promoting economic growth and development in the state.
However, Thurmond's legacy as governor is primarily defined by his opposition to desegregation and his attempts to maintain racial segregation in South Carolina. In 1954, Thurmond famously led a filibuster against the Civil Rights Act, which he saw as a threat to the Southern way of life.
Overall, Thurmond's time as governor of South Carolina was significant in shaping the state's political landscape, but his legacy is controversial due to his support for segregation and his opposition to civil rights.
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In order to make useful predictions, which factors must be accounted for by climatic models?
Answers
The cooling effect of atmospheric aerosols.
Small particles of solids, like dust, and liquids, like water, suspended in the atmosphere make up atmospheric aerosols. Atmospheric aerosols can either be released into the atmosphere as a single particle, similar to ash, or they can form when released gases go through complicated chemical reactions and condense as particles.
Atmospheric aerosols come from a variety of sources and can be further divided into those that are naturally occurring or those that are caused by human activity. Natural aerosols come in a wide variety of forms, including dust, sea salt, smoke, and those produced by living things, or biogenic aerosols.
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Que es la aceleración dela luz
Answers
Answer:
Explica que la luz no acelera cuando se mueve a la velocidad de la luz. Pero cuando se emite luz, como fotón, tiene que acelerar desde una velocidad de 0 m / sa 3,0 * 10 ^ 8 m / s.
Explanation:
what country is 45 degrees north and 65 degrees west
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Answer:
Nova Scotia, Canada
Explanation:
What led to US control of the Philippines?
enlightenment
expansionism
diplomacy
idealism
Answers
Answer:
After its defeat in the Spanish-American War of 1898, Spain ceded its longstanding colony of the Philippines to the United States in the Treaty of Paris. The decision by U.S. policymakers to annex the Philippines was not without domestic controversy.
Explanation:
The factor that supports to the US in taking the control of the Philippines is expansionism. Hence, Option B is correct.
What is expansionism?
Other terms that can be used in place of expansionism are imperialism, colonialism, neocolonialism, and many more. It is that kind of practice that was done in ancient times so that territories can be expanded.
It is basically a kind of policy that was used and applied by emperors with the aim of expansion of their nation or territory. This policy was taken into practice all the time, whenever the ruling government of any nation wants to construct their empire on overseas land.
With the practicing expansionism or imperialism, when the US made use of it, all it wants is that no other country will take over the control of the Philippines islands.
Thus, Option B is correct.
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can someone please help with this four question?
Answers
Answer:
The western plains of China contain very fertile soil. Perfect living conditions. As well as an abundance of water and natural resources.
Explanation:
The reason so few people live in the East is because it is not very sustainable for human life. It is very cold, arid, the soil isn't great. The West however, has ocean routes, is wealthy, has access to fertile soil, etc...
China's major rivers, mountain ranges, desert regions, and population densities are depicted on this map. Understanding where people settle and why some areas have greater population densities than others begins with mapping the distribution of a population.
1. According to the map key (bottom left), each point represents one million people.
2. Tibetan Plateau and the Himalayas. A topographic map shows landforms, watercourses, vegetation, and manmade features, such as mountains, valleys, and rivers. Usually, elevation is expressed as a percentage of sea level.
3. In mountain ranges and hills, topography affects population distribution, for example, because roads are difficult to build, making trade and travel difficult. Especially in high-altitude regions, it is not feasible to set up a house because of the lack of access to water and agricultural land.
Taklamakan, for example, is one of the driest deserts in the world. The risk of not having food or water makes human life difficult. There is more accessible and survivable land elsewhere in China, so people settle there.
4. Having natural resources facilitates a higher population because they can be used to build industries and manufacture goods. With an increasing population comes the need for more resources, such as freshwater, farmland, oil, etc., which will encourage people to settle in areas with abundant resources.
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List the names of medicinal plants found in your locality with their use?
Answers
Basil. Basil is a common herb used to garnish salads, pasta and many other meals to add delicious flavor.
Catnip. Catnip is a fun plant for cats.
Which of the following best describes the general relationship between the velocity of seismic waves and depth in Earth?
Answers
The velocity of seismic waves generally increases with depth in the Earth. This is due to the increasing pressure and temperature in the Earth's interior, which causes the density of the material to increase. As the density increases, the velocity of seismic waves also increases because the material becomes more rigid and resistant to deformation.
There are, however, some notable exceptions to this general trend. For example, in certain regions of the Earth's mantle, seismic waves may slow down due to the presence of molten material or other anomalies. Additionally, seismic waves can be strongly affected by the composition and structure of the material they are passing through, which can lead to significant variations in wave velocity at different depths.
which of the following describes a meteor? question 2 options: a. the visible passage of a glowing rocky body through earth's atmosphere. b. a large (much greater than a meter) rocky or metallic body in outer space. c. a portion of a rocky or metallic body that survives its passage through the atmosphere and hits the ground without being destroyed. d. a small (a meter or less) rocky or metallic body in outer space.
Answers
Meteoroids are space rocks that range in size from dust grains to small asteroids and are known for being fast-moving objects. Their name is based on their appearance, which is a flash of light that we see when they enter Earth's atmosphere and burn up.
These are the types of space rocks that collide with Earth's atmosphere, leaving trails of glowing gas behind them. Hence, the answer to your question is option a. The visible passage of a glowing rocky body through Earth's atmosphere.In addition, meteoroids come from comets or asteroids orbiting the sun, and when they are close enough to Earth, they may enter our planet's atmosphere. When this occurs, the meteoroid, which is composed of rock and metal, moves at a speed of approximately 70 kilometers per second, or 157,000 miles per hour, through the atmosphere. As it does so, it collides with the air, generating friction and causing the meteoroid to heat up and glow. As a result, the meteoroid is consumed in a bright flash of light that we refer to as a meteor.
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how would the angle of subduction of a tectonic plate influence the location of a volcanic arc?
Answers
The angle of subduction of a tectonic plate strongly influences the location of a volcanic arc.
A steep subduction angle promotes the formation of a volcanic arc closer to the subduction zone, as the descending plate sinks rapidly into the mantle, inducing melting and magma generation. This leads to volcanism near the trench. In contrast, a shallow subduction angle hinders efficient melting and magma generation.
Consequently, volcanic activity may occur farther from the subduction zone, and the volcanic arc can be displaced away from the trench. Although other factors such as magma composition and regional geology also play a role, the angle of subduction is a critical factor in determining the location of volcanic arcs along subduction zones.
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A mitigation strategy to combat urban heat islands is constructing white roofs to increase roof reflectivity. The low reflectance of a dark-colored roof causes heat to be absorbed, while the high reflectance of a white roof reflects energy away from the building.
The bar graph shows the amount of solar reflectance from different types of roofs, and the scatter plot shows the relationship between solar reflectance and the maximum temperature rise of each material in full sun conditions.
Use the graphs to evaluate the following statements.
Place True or False at the end of each statement.
A.) White coatings on roofs increase solar reflectance. True or False
B.) Gray asphalt shingles demonstrate greater temperature changes than white cement tile roofs. True or False
C.) Red clay tile roofs have a greater reflectance, and therefore a cooler temperature, than white cement tile roofs. True or False
D.) An increase in a roof's solar reflectance is correlated with an increase in the roof's temperature. True or False
E.) White coating roofs (1 coat - 20 mils) may experience a temperature rise of 5 degrees C, but gray asphalt shingles may experience a temperature rise of 37 degrees C. True or False
Answers
The formation of urban heat islands is reduced due to the painting of roofs in a way that increases roof reflectivity.
A.) White coatings on roofs increase solar reflectance.
The given statement is True.
B.) Gray asphalt shingles demonstrate greater temperature changes than white cement tile roofs.
The given statement is False.
C.) Red clay tile roofs have a greater reflectance, and therefore a cooler temperature, than white cement tile roofs.
The given statement is False.
D.) An increase in a roof's solar reflectance is correlated with an increase in the roof's temperature.
The given statement is False.
E.) White coating roofs (1 coat - 20 mils) may experience a temperature rise of 5 degrees C, but gray asphalt shingles may experience a temperature rise of 37 degrees C.
The given statement is True.
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White coatings on roofs increase solar reflectance and reduce heat absorption. Gray asphalt shingles demonstrate greater temperature changes than white cement tile roofs. Red clay tile roofs have a lower reflectance compared to white cement tile roofs.
Explanation:A) True. White coatings on roofs increase solar reflectance because they have a high reflectance, which means that they reflect more energy away from the building. This helps to reduce the amount of heat absorbed by the roof.
B) False. The bar graph shows that white cement tile roofs have a higher solar reflectance compared to gray asphalt shingles. Therefore, white cement tile roofs demonstrate greater temperature changes due to their higher reflectance.
C) False. The bar graph shows that red clay tile roofs have a lower solar reflectance compared to white cement tile roofs. Therefore, red clay tile roofs have a lower reflectance and are likely to have a higher temperature compared to white cement tile roofs.
D) False. The scatter plot shows that as the solar reflectance of a roof increases, the maximum temperature rise decreases. This means that there is a negative correlation between solar reflectance and roof temperature.
E) False. The scatter plot does not provide specific temperature rise data for white coating roofs or gray asphalt shingles. Therefore, we cannot directly compare the temperature rise between these two materials based on the given graphs.
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An igneous rock with a vesicular texture indicates that the parent melt contained abundant volatiles True False D Question 4 1 pts Melting in the mantle may occur when hot solid material is brought closer to the surface. True False
Answers
The statement of "an igneous rock with a vesicular texture indicates that the parent melt contained abundant volatiles" is true (T) because the presence of a vesicular texture in an igneous rock is strong evidence that the parent melt contained abundant volatiles, or gases.
A vesicular texture in an igneous rock indicates that the rock formed from a volcanic eruption and that the parent melt, or magma, contained gases such as water vapor, carbon dioxide, and sulfur dioxide. As the magma rose to the surface and erupted, the pressure on the gases decreased, causing them to expand and form bubbles, or vesicles, within the rock. Therefore, the presence of a vesicular texture in an igneous rock is strong evidence that the parent melt contained abundant volatiles, or gases.
The statement "Melting in the mantle may occur when hot solid material is brought closer to the surface" is true (T) because melting in the mantle indeed occurs when hot solid material is brought closer to the surface by tectonic activity or by the upwelling of hot material from the earth's interior.
This is because as the material is brought closer to the surface, the pressure on it decreases, allowing it to reach its melting point at a lower temperature. Additionally, the hot material may also contain small amounts of water or other volatile compounds, which can also lower the melting point and cause melting to occur. As a result, this process can lead to the formation of magma and the creation of volcanic activity.
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the name of Africa’s longest river is the
Answers
"the name of Africa's longest river is the" Nile
The name of Africa’s longest river is the Nile. The correct option is A.
The Nile River is Africa's longest river, stretching roughly 6,650 kilometres (4,130 miles).
It is an important supply of water for various nations, including Egypt, Sudan, Ethiopia, and Uganda.
The Nile has aided the development of ancient civilizations such as Ancient Egypt by providing excellent land for cultivation and allowing transit and trade.
The river begins in Uganda near Lake Victoria and travels north through many countries until it reaches the Mediterranean Sea in Egypt.
Its waters nourish varied ecosystems and the livelihoods of millions of people along its path, making it a vital lifeblood for the region.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
The name of Africa’s longest river is the
A) Nile
B) Congo
C) Niger
D) Zambezi
How is tropical cyclone Igrid related to the sapphire-simpson and Beaufort
Answers
What are the three smallest countries in the world?.
Answers
Answer:
The three smallest countries in the world are:
Vatican City (it is a country)MonacoNauruWhat is the value of x?
Enter your answer in the box.
A quadrilateral with interior angles. Angle F is equal to 95 degrees, angle G is equal to 92 degrees, angle H is equal to 96 degrees, and angle I is equal to 7x degrees.
Answers
Answer:Correct
Explanation:Correct
Which of the following is a push factor that is described in the reading?
Responses A. Violence against African-Americans in the south.
B.Violence against African-Americans in the south.
C.Job opportunities in the north.
Job opportunities in the north. The right to vote in the north. The right to vote in the north. The formation of organizations like the National Urban League.
Answers
C. A push factor that is discussed in the reading is Employment prospects in the north.
What were the motivating elements for African Americans?The reason for this significant movement was due to a number of push and pull forces. Jim Crow laws, widespread discrimination, segregation, lack of employment, and other factors in the South "pushed" black people, whereas industrialism, rising employment rates, and relative tolerance in the North "pulled" them.
What drove African Americans to migrate north, and what kept them there?During World War I, there were a variety of reasons why African Americans moved to Hartford. The Jim Crow laws, racial prejudice, and vigilante violence in the Southern States drove some people north in quest of relief. Others were looking for employment options and alternatives to farming.
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Which mountain range separates Georgie from Russia?
Answers
Answer:
Caucasus Mountains
Explanation:
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It is colder at the poles than it is at the equator because the poles are farther away from where the Sun strikes tthe surface of the Earth.
Answers
Answer:
YES!
Explanation:
the United States is a ______________________ country
Answers
Answer:
free
Explanation:
Select the correct answer from each drop-down menu. why are biogeochemical cycles important? earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth . so, it is essential that biogeochemical cycles these materials as they move through earth's subsystems.
Answers
So, it is essential that biogeochemical cycles these materials as they move through earth's subsystems.
Biogeochemical cycle, any of the herbal pathways by means of which essential elements of residing count are circulated. The time period biogeochemical is a contraction that refers to the consideration of the organic, geological, and chemical factors of every cycle.
Biogeochemical cycle, any of the herbal pathways by means of which essential factors of residing remember are circulated. The term biogeochemical is a contraction that refers to the attention of the biological, geological, and chemical aspects of each cycle.
The of chemical factors and compounds among dwelling organisms and the bodily surroundings. chemical compounds absorbed or ingested by means of organisms are passed via the meals chain and back to the soil, air, and water by using such mechanisms as respiratory, excretion, and decomposition.
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solutions to tropical cyclone
Answers
Answer:
If you shelter at home:Turn off all electricity, was and water; unplug all appliances. Keep your emergency kit close at hand. Bring your family into the strongest part of thr house. Keep listening to the radio for cyclone updates
As air and water vapor rise higher into the troposphere it will cool. This is because there is less pressure on that air and water vapor. Thus, it expands and cools. We call this _____ cooling.
Answers
As air and water vapor rise higher into the troposphere, it will cool. This occurs because there is less pressure on that air and water vapor, causing it to expand and cool. We call this process adiabatic cooling.
Adiabatic cooling is a natural process that occurs when a gas expands rapidly, causing a decrease in pressure and temperature without any heat being added or removed from the system. This process is commonly observed in the atmosphere, where air rises and expands as it moves to higher altitudes. As the air expands, it cools down, leading to the formation of clouds and precipitation. Adiabatic cooling is also used in various industrial and scientific applications, such as in the operation of refrigeration systems and the cooling of electronics.
Understanding the principles of adiabatic cooling is essential for many fields of study, including meteorology, thermodynamics, and engineering.
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at which point does the maximum rotation take place at the equator or poles
Answers
Answer:
Explanation:
As the latitude at which horizontally and freely moving objects are located decreases, the twisting of the underlying Earth's surface due to the planet's rotation decreases. That is, the Coriolis effect decreases as the latitude decreases. It is maximum at the poles and absent at the equator
which of the following help explain why the colorado river cut the grand canyon, while the much larger mississippi river is not in a canyon at all. pick 2
Answers
The Colorado river cut the grand canyon because The Mississippi moves slower. The Mississippi has a lower change in elevation each mile, on average.
A deep valley with steep sides is called a canyon. Spanish for "tube" or "pipe," "canyon" is derived from the word caon. Although the words "gorge" and "canyon" are frequently used interchangeably, a gorge is almost always narrower and steeper than a canyon.Canyons are produced by tectonic activity, weathering and erosion, and river movement.River canyons are probably the most well-known kind of canyon. River beds can be severely damaged by the pressure of the flowing water. A deep, narrow channel is formed when riverbed sediments are carried downstream.Entrenched rivers are those that flow through large, deep canyons. They are firmly established because, unlike rivers in broad, flat flood plains, they do not meander or diverge.Learn more about River canyons, here
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Islam is the only religion in the world which has an important influence on politics.
T or F.
Answers
Answer:
Correct answer is False.
Explanation:
The answer is false, because religion plays important life even in the political life of many countries. Take just example how in Europe certain demo Christian political parties have large influence. The best example from the recent past is Montenegro, where Church interfered in the election process and helped opposition to defeat a political structure that ruled for the last thirty years.
how are wind and ocean currents related to the amount of the suns heat on earth