Question

What is meant by sand dunes?

Answer 1

Answer:

A mount, hill of sand that lies behind the part of the beach due to the affects of tides is called Sand dunes

Answer 2

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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Explanation: