Write the term given to ageing of the water body.Explain the process

Explain Dow’s process.

Explain Dow 's process .

Explain the term modem.

Give the term for the study of fresh water bodies.

Give the term for the stagnant inland water bodies.

Explain the terms : Callus

Explain the process of succession.

Determination of Biochemical oxygen Demand (BOD) can help in suggesting the quality of a water body. Explain.