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QUESTION 2


What agent causes sand dunes to form?


ocean waves


weathering of old rocks in the desert


the wind carries the sand until it runs into an obstacle


gravity

Verified Answer :

kristinetpo08

The answer to your question would be:: the wind because it carries the sand until it runs into an obstacle

Sand dunes: These are small hills made up of lose sand.

During formation of dunes ( in deserts or sea shores) there is creeping of sand particles along one side and there is sliding of sand on other side resulting in formation of a dune.

Thus the agent causes sand dunes to form is the wind carries the sand until it runs into an obstacle

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