They are made of sandstone, a type of sedimentary rock. b. In cross-sectional view, they show cross beds of sand. c. Sand dunes that are covered with vegetation often erode more quickly than do non-vegetated dunes. d. They can migrate downwind more than 2 km in a year.

Answers

Answer 1

Complete question:

Which of the following statements about sand dunes is true?

Choose one:

a. They are made of sandstone, a type of sedimentary rock.

b. In cross-sectional view, they show cross beds of sand.

c. Sand dunes that are covered with vegetation often erode more quickly than do non-vegetated dunes.

d. They can migrate downwind more than 2 km in a year.

Answer:

b. In cross-sectional view, they show cross beds of sand.

Explanation:

Winds can transport many different-sized particles of material from the ground through the process of erosion. These particles might travel many kilometers until they deposit somewhere. Regions with no vegetation have too much dust and grain-sized particles that move and crush each other, increasing erosion. This process is known as eolic erosion. Dunes are winds deposits, formations that are typical of deserts. Dunes are orientated according to the direction and speed of winds and the presence of loose material and vegetation. Strong winds transport sand until it collides with an object or obstacle, where it is deposited, originating a new dune.

Dunes are very dynamic formations that are constantly, being remodeled by the direction and strength of the winds. Dunes always have a soft slope and a sharp one. The soft slope faces the direction where the wind is coming from and is the product of the wind erosion on the same dune. The opposite sharp slope is protected from the wind and is the deposition place, where the wind losses strength and the carrying material falls, depositing in this side of the dune. Dunes are arranged as cross-bedding forms, reflecting the erosion and deposition pattern.

This is how erosion and deposition work together to form a dune.


Related Questions

It refers to what people stand to lose when the hazard occurs​

Answers

Could you explain more ?

“If there’s not enough water in the place, just move people out”. Is it a good idea? Explain your answer. ​

Answers

Answer:

yes,

Explanation:

because people need enough water for them to live and also water is used by many uses like washing

if the local time is noon at Buchanan in noon at longitude 10 degtrees west, what will be the time in nairobi at longitude 37 degrees east

Answers

Answer:

3:08 pm

Explanation:

the degree. between the two towns is 47 .

47*4/60= 188/60 =3 2/5 hours.

time in the east is ahead than time in the West ,so we add 3 2/15 hours to the time in Buchanan.

thus we get 1508hours

Carl Linnaeus developed which of the following?


- the first system to differentiate between plants and animals

- the taxonomic system that underlies most major modern systems

- the most recent classification system to be adopted in the last century

- the first scientific professional research group to work on an international taxonomy

Answers

I believe the correct answer is B! The taxonomic system that underlies most major modern systems...

Answer:

B, the taxonomic system that underlies most major modern systems

Explanation:

Compare the similarities and differences between the types of wind that blow frequently on earth ?

Answers

Answer:

The Earth contains five major wind zones: polar easterlies, westerlies, horse latitudes, trade winds, and the doldrums. Polar easterlies are dry, cold prevailing winds that blow from the east. They emanate from the polar highs, areas of high pressure around the North and South Poles.

(Q014) Identify the true statement. a. To keep the Earth's surface area constant, the amount of seafloor spreading must equal the amount of subduction. b. Ocean basins get narrower as a result of seafloor spreading. c. Subduction causes continents to move apart; seafloor spreading brings them together. d. Ocean floor is created by the process of subduction.

Answers

Answer:

The correct answer is - a. To keep the Earth's surface area constant, the amount of seafloor spreading must equal the amount of subduction.

Explanation:

Subduction is the process of the movement in the plate tectonics of the edge of one crustal plate or oceanic lithosphere descending below the edge of another or earth's mantle. Seafloor spreading is the splitting of the ridges of the earth's surface or slabs due to volcanic activity.

On the basis above we can say that the amount of subduction and the amount of seafloor spreading are equal then the Earth's surface area will remain constant.

why did pluto not follow the last rule if it could possibly could​

Answers

It has not yet cleared the neighborhood of its orbit in space. Because it does not follow this rule, Pluto is no longer considered a planet.


What is the first part of a map?

Answers

Answer:

title

Explanation:

first part of a map you need title

please help!
have a nice day

Answers

What are you writing the five paragraph essay about?

what does hierarchy mean

Answers

Answer:

Hierarchy is a very resilient management structure that has been so embedded in the way we work that most organizations around the world are having a long time getting out of it.

Explanation:

I've talked about some pretty old-fashioned workplace practices and approaches, and hierarchy is one of them. According to Wikipedia, "probably the first use of the word 'hierarchy' in English cited by the Oxford English Dictionary was in 1880, when it was used to refer to the three orders of the three angels as Pseudo-Dionysius the Areopagite depicts the 6th Century).” This model was quickly adopted by the military as a way to represent a chain of command and of course we have all seen and experienced this in our organizations (and most still do). . This kind of model makes sense for linear work, where brain power is not needed and where the people who work there are treated like usable cogs. However, as the battle for talent continues to get fiercer, organizations around the world are rapidly trying to find alternatives to the hierarchy. In fact, every single organization that I speak to, work for, and study, is looking to spruce up their structure. No one ever told me they wanted more bureaucracy and more classes. Yes in.

A hierarchy is system of governance that can be applied in many situations, whether it is business or government. Usually in the structure, there is someone to be commanded and someone to be obeyed to.

Briefly describe how the aneroid barometer Works 

Answers

Answer:

Inside an aneroid barometer is a small capsule. This capsule has had the air pumped out of it. ... The capsule is attached to levers which move a needle as the air pressure squeezes the capsule. A dial behind the needle tells you the air pressure and altitude or weather forecast.

(Q017) The age of oceanic crust a. is the same throughout the world's oceans. b. is greatest at the mid-ocean ridge and least farthest from the ridge. c. has been determined by radiometric dating. d. indicates that the oldest oceanic crust is approximately 600 million years old.

Answers

Answer:

c. has been determined by radiometric dating

Explanation:

Radiometric dating is a method that is used to determined by the age of rocks as per the age of the oceanic crust the plates near the mid oceanic ridges are the most recent or new. The plates that are located farther away form there ridges are oldest and hence the age of the oceanic crust is not the same in all the places of the world oceans.

what is the capital of the following countries: Fiji,Australia,New zealand,Pakistan,Canada,Germany, Vanuatu,Samoa,Tonga,New caledonia,Tuvalu,American samoa ,China,Japan,Turkey,Korea​

Answers

Answer:

Wellington : new zealand

Answer:

Suva,Canberra,Wellington,Islamabad,Ottawa,Berlin,Port Vila,Apia,Nuku'alofa,Noumea,FunaFuti,Pago pago,Beijing,Tokyo,Ankara,Seoul

In North Korea, all factories and businesses are owned by the government. What type of economy does North Korea have?

Answers

Answer:

Controlled Command Economy

Explanation:

hope i helped

50 POINTS!!!!!!!!

Most of Australia has ...
Select one:
a. a temperate climate that receives between 25 to 40 inches of rain a year.
b. an arid or semi-arid climate and receives little rainfall.
c. a marine west coast climate and receives up to 60 inches of rain a year.
d. a subtropical climate that receives over 60 inches of rain a year.

Answers

Answer:

the answer would either be a or be

Explanation:

Because yearly they get 24.7 in. of rainfall so you could pick between a or b

The correct answer should be B. The average rainfall is about 419 mm which is 16 inches.

Which of the following statements about political maps are true? Check all that apply. I A. They never show any physical features of land. B. They are the most common type of map. O C. They will show capital cities, major cities, and large lakes or rivers D. They may show how areas are broken into countries and states.​

Answers

Answer:

B, C, D

Explanation:

If you look up a political map you can see they they are the most common map, they are what we use to find cities and landmarks, and they are the kind of map that show you where all the states or countries borders are.

Which statement is TRUE regarding the greenhouse effect?Question 9 options: Increased levels of human-produced carbon dioxide have enhanced the greenhouse effect. The greenhouse effect did not exist before humans. Greenhouse gases work by magnifying incoming solar radiation onto Earth's surface, just like in a greenhouse. Volcanoes are the largest source of greenhouse gases. All of these answers are true.

Answers

Answer:

Increased levels of human-produced carbon dioxide have enhanced the greenhouse effect

Explanation:

The greenhouse effect has certain gases that are used to create it. One of these gases is carbon dioxide. If we produce more carbon dioxide this increases the amount of gases and therefore helps the greenhouse effect, it enhances it.

Select ALL the correct answers.
What are three positive effects for countries that participate in international governmental organizations and nongovernmental organizations?
O providing a neutral means of communication between countries
Dincreasing efficiency within individual governments
choosing political leaders for participating countries
O working together to deliver humanitarian ald
settling political disputes without military involvement
Reset
Next

Answers

Answer:

What are three positive effects for countries that participate in international governmental organizations and nongovernmental organizations?

providing a neutral means of communication between countries working together to deliver humanitarian and settling political disputes without military involvement

Three positive effects for countries that participate in international governmental organizations and nongovernmental organizations are:

Providing a neutral means of communication between countriesincreasing efficiency within individual governments.Working together to deliver humanitarian and settling political disputes without military involvement. Therefore, option (a), (b), and (d) is correct. What is governmental organizations?

Governmental organizations are businesses created by or controlled by the government. Agencies, bureaus, boards, commissions, courts, departments, representatives, political subdivisions, and tribunals are a few examples.

Countries can communicate and work together on matters of shared interest through international governmental organizations (IGOs) and nongovernmental organizations (NGOs). By giving access to resources and knowledge that would not be accessible domestically, they also aid in boosting efficiency inside individual administrations.

As a result, the significance of the three positive effects for countries that participate in international governmental organizations and nongovernmental organizations are the aforementioned. Therefore, option (a) (b) and (d) is correct.

Learn more about on organizations, here:

https://brainly.com/question/29888569

#SPJ2

What is Normal lopse Rate?​

Answers

Answer:

  3.5 °F/1000 ft

Explanation:

The "normal lapse rate" is the average rate at which normal air temperature decreases with increasing altitude. It is on the order of 3.5 °F per 1000 ft or 6.5 °C per km.

__

The actual lapse rate depends on a number of factors, including radiation, convection, and condensation. An "inversion" is characterized by increasing temperature with altitude.

Write THREE significance of atmosphere​

Answers

Answer:

The atmosphere protects the Earth from solar radiation.

It traps heat, making Earth a comfortable temperature.

The oxygen within our atmosphere is essential for life.

The importance of the atmosphere is as follows:
1) The atmosphere protects the Earth from the solar radiation.
2) It filters the harmful ultraviolet rays of the Sun.
3)The atmosphere traps the required heat of the Sun and allows the rest to escape into space, thus maintaining a moderate temperature on the Earth.

What earthquake allowed researchers to develop the elastic rebound theory?

Answers

The answer is: the 1906 San Francisco earthquake.

From an examination of the displacement of the ground surface which accompanied the 1906 earthquake, Henry Fielding Reid, Professor of Geology at Johns Hopkins University, concluded that the earthquake must have involved an "elastic rebound" of previously stored elastic stress.

The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their internal strength is exceeded.

what is the theory used in the united states that invlolves people giving their freedom to the government in order to protect life, liberty and personal property a. theory force b. social contract theory c. Devine right theory d. evolution theory​

Answers

Answer:

Social Contract Theory

Explanation:

What is the last country to introduce television?

Answers

Answer:

I think it might've been Bhutan

Kiribati is the last country to have TV.

Hope this helps :)

Help plssss nowww pls pls pls

Answers

Answer:

Planetary orbits around our Sun are not perfect circles.  They're ellipses--a loose term to use is oval or ovoid.  At some point Earth gets to its closest point along its orbital path to the Sun .  6 months later it will be at its farthest away.  The distance from the Sun is not what causes the seasons.  The amount of direct sunlight hitting a certain hemisphere of Earth is what causes the seasons.  So, when the Earth's axis is tilted so that the Northern Hemisphere is titled toward the Sun, it's summer time in the Northern Hemisphere. When the Northern Hemisphere is tilted away, it's winter.  So, even though we are closer in distance during January through March, we in the Northern hemisphere are tilted away and it is winter for us.  Yes, that means it is summer in the Southern Hemisphere.

Answer From Gauth Math

describe the extraction of trona in lake magadi​

Answers

Answer:

A dredger scoops trona out of the lake. - It crushes it into smaller pieces and separates it from rock debris. - The material is mixed with water to form slurry and transported to factory on the lake's shore. - In the factory the slurry is mixed with water to wash out impurities such as mud and salt and dried

Help PLEASE

Ethnic and universalizing religions have different understandings of relationships between humans and nature.
What is the term for a set of religious beliefs involving the origin of the universe and the environment?
cosmogony
O agnosticism
O syncretism
denomination
O toponym

Answers

Answer:

cosmogony

Explanation:

Cosmogony is a set of religious beliefs concerning the origin of the universe. A variety of events in physical environment are more likely to be incorporated into the principles of an ethnic religion unlike universalizing religion. ... Many holy places are not related to any particular physical environment.

The invention of electric cars is an example of people adapting to change
in our environment. TRUE OR FALSE

Answers

Answer:

true i guess ????

Explanation:

correct me if im weong

Answer:

True

Explanation:

because environment is change per sec. by humans

If it’s 12:00 PM at the GMT what time is it in Los Angeles, If Los Angeles is 7 hours ahead

Answers

Answer:

hey, the answer to this question is, 7:00pm

Explanation:

the way of working this out is easier than u may think, first you have to add 7 and 12 and then, boom an answer.

hope it helps<3

Answer:

7:00

Explanation:

If Los Angeles is 7 hours ahead, then 12:00+7:00 is 7:00 pm. I hope this helps!

Brainliest is very much appreciated.

Why do humans often act in ways that disturb the natural services of the environment?

Answers

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Write your question here (Keep it simple and clear to get the best answer)WHAT IS THE MEANING OF CLOUD SEEDING

Answers

Cloud seeding is a weather modification technique that improves a cloud's ability to produce rain or snow by artificially adding condensation nuclei to the atmosphere, providing a base for for snowflakes or raindrops to form.

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I NEED HELP WITH THIS!! 50 POINTS!!! Drag each system of equations to the correct location on the table.Classify each system of equations as having a single solution, no solution, or infinite solutions. PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!Which of the following statements is incorrect about the data set that includes 1,2,3,4,5,6,7?A. The data set has no modeB. The data set has a second quartile of 6C. The data set has the same mean and medianD. The data set has an interquartile range of 4 Find the Quotient. Do NOT round22.14 divided by 1.2 You are an HR manager. Write an email (120 - 140 words) to your company's new employees about things they should/ should not do on their first day at work. 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