Define : a) Aggradation b) Degradation c) Erosion d) Deposition
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(a)Aggradation- It refers to an increase in elevation of land usually in River system due to deposition of sediments
(b) Degradation- It occurs due to erosional activities of mainly wind and water.It refers to the lowering of a landform through erosional process.
(c) Erosion- Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
(d) Deposition- A deposition is a geological process in which sediments ,soil and rocks are added to a landform or land mass
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