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Our Changing Earth — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesOur Changing Earth1 Mark
Question
What are sand dunes?
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Answer

When the wind blows, it lifts and transports sand from one place to another. When it stops blowing the sand falls and gets deposited in low hill – like structures. These are called sand dunes.

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