Question

Name the features formed by the river at its mouth. Mention their importance.

Answer 1

The river forms two main features at its mouth:

1. Delta: A triangular depositional landform formed by silt accumulation, dividing the river into distributaries. It is fertile and ideal for cultivation.
2. Estuary: A funnel-shaped mouth without islands or distributaries, formed when the river is tidal or the coastal plain is narrow.

Importance: Deltas provide fertile soil for agriculture; estuaries support rich biodiversity and act as nurseries for marine life.