Question

distinguish between term and aggradation and degradation

Answer 1

In geology, degradation refers to the lowering of a fluvial surface, such as a stream bed or floodplain, through erosional processes. Aggradation (or alluviation) is the term used in geology for the increase in land elevation, typically in a river system, due to the deposition of sediment.

Answer 2

Hey Mate here's the answer to your question:-

Aggradation is the term used in geology for the increase in land elevation, typically in a river system, due to the deposition of sediment.

But

Degradation is the process of something becoming worse or weaker, or being made worse or weaker.