Which term describes the raised, flat area at the back of a beach formed by ongoing sediment deposition?

Which term describes the raised, flat area at the back of a beach formed by ongoing sediment deposition?

• A. Beach
• B. Berm
• C. Berm Crest
• D. Delta

Answer: (B)

The raised, flat area at the back of a beach formed by ongoing sediment deposition is a berm. It develops along the backshore as wave swash and backwash move sand up to the upper shore and deposit it, building a relatively flat, ridged platform parallel to the coast. The crest refers to the very top edge of that ridge, but the feature itself is the berm. A delta forms at river mouths from sediment deposited where a river meets the sea, and a beach is the broader sandy area, not specifically the raised backshore ridge.

The raised, flat area at the back of a beach formed by ongoing sediment deposition is a berm. It develops along the backshore as wave swash and backwash move sand up to the upper shore and deposit it, building a relatively flat, ridged platform parallel to the coast. The crest refers to the very top edge of that ridge, but the feature itself is the berm. A delta forms at river mouths from sediment deposited where a river meets the sea, and a beach is the broader sandy area, not specifically the raised backshore ridge.