Describe how sand dunes migrate
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Due to obstacles (vegetation, rocks, and so on) creating "shadows" that protect from prevailing winds, grains of sand can be deposited and remain in these "wind shadows." Eventually, the sand accumulates into a dune with an asymmetrical profile, the windward slope being gently inclined and the leeward slope being steep. Between this profile and the prevailing winds, sand is continually rolled up the gentle slope and falls down the steep slope (slip face), slowly migrating the dune in the direction of air movement.
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The origin of the Russian state is connected to
A) the early history of the Cossacks. B) the Caucasus region. C) the Slavic people from what is today Belarus. D) the division of the Slavic people by Roman Catholicism and Eastern Orthodox Christianity.
Of the following substances, which are the common elements in igneous rocks?
Silicon, rubidium, nitrogen, carbon, sodium, manganese, hydrogen, oxygen, potassium, calcium, phosphorous, aluminum, iron, chlorine, magnesium, uranium, helium, gold What will be an ideal response?
List the eight essential changes in the way people perceive and use their environments necessary to meet sustainable development
What are some of the visible evidences of the widespread use of the township and range land survey system all across the midwestern United States?
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