Why Can Dune Sand,which Can Easily Spread on a Beach,be

question 15

Multiple Choice

Why can dune sand,which can easily spread on a beach,be easily eroded during a storm?

• A) Dune sand is finer grained and thus more easily moved by waves.
• B) Dunes are at the upper limit of the waves where the waves can easily drag them back downslope.
• C) Dune sand stands at a steeper slope than the beach, so it can easily move down to the beach.
• D) Dune sand is rounder grain than beach sand, so it easily rolls down the beach.
• E) Dune sand is more angular than beach sand, so the grains do not fit together well.

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