Question

A narrow low lying elongated shallow sea which has huge amount of sediment

Answer 1

Answer:

Lagoon

Explanation:

Hapua are often located on paraglacial coastal areas where there is a low level of coastal development and minimal population density. Hapua form as the river carves out an elongated coast-parallel area, blocked from the sea by a MSG barrier which constantly alters its shape and volume due to longshore drift.