A shallow depression from which an abundance of fine material has been deflated is known as a deflation hollow or ________.

Question

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Deflation hollows are formed when wind removes finer sediment, leaving behind coarser sediment. These depressions are also known as blowouts. Choice A (seif) refers to a specific type of sand dune, choice C (tombolo) is a landform created by wave deposition that connects an island to the mainland, choice D (barchan) is a crescent-shaped sand dune, and choice E (swash) refers to the movement of water up the beach after a wave has broken.

A Shallow Depression from Which an Abundance of Fine Material