Question

The area around a river is known as ________​

Answer 1

Deltas

Channeled means grooved or cut deeply. A delta is a large, silty area at the mouth of a river at which the river splits into many different slow-flowing channels that have muddy banks. New land is created at deltas. Deltas are often triangular-shaped, hence the name (the Greek letter 'delta' is shaped like a triangle).