Dune
Context
A mound or ridge of sand or other loose sediment formed by the wind, especially on the sea coast or in a desert
Explanation
Dunes are formed by the wind's movement of sand and can vary greatly in size and shape. They are dynamic and change shape over time.
Applications
Dunes serve as natural barriers against coastal erosion and help in sand distribution.
They provide habitat for specialized plants and animals adapted to sandy environments.
Studying dunes helps in understanding wind patterns and desert ecosystems.