An accumulation of sediment found along the landward margin of the ocean or lake is called a

Answer;

Beach

Explanation;

-An accumulation of sediment found along the landward margin of the ocean or lake is called a beach.

-An accumulation of sediment found along the landward margins of an ocean or a lake. Beaches are composed of whatever material is locally abundant. However, the mineral makeup of many beaches is dominated by durable quartz grains, other minerals may be dominant.