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.

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.