As wind blows up the windward side, sand grains may be picked up and blown toward the top. Then grains may drop, allowing them to slip down the leeward side. What event is this describing?

1: Desertfication

2: Deposition

3: Dune movement

4: Drought of farmlands

The sand mass of dunes can move either windward or leeward, depending on if the wind is making contact with the dune from below or above its apogee.

If wind hits from above, the sand particles move leeward; the leeward flux of sand is greater than the windward flux.

Thus, the event described when wind blows up the windward side, sand grains may be picked up and blown toward the top is Dune movement.

Learn more about dune movement here: https://brainly.com/question/13027240

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As wind blows up the windward side, sand grains may be picked up and blown toward the top. Then grains may drop, allowing them to slip down the leeward side. What event is this describing? 1: Desertfication 2: Deposition 3: Dune movement 4: Drought of farmlands

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What is Dune movement?

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As wind blows up the windward side, sand grains may be picked up and blown toward the top. Then grains may drop, allowing them to slip down the leeward side. What event is this describing?

1: Desertfication

2: Deposition

3: Dune movement

4: Drought of farmlands