How does algal bloom destroy the quality of fresh water body? Explain.

Give the term for the study of fresh water bodies.

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

Explain how does: The algal bloom eventually choke the water body in an industrial area.

Explain algal bloom.

How are the functions of body regulated? Explain.

How does filarial worm affect the body of infected person(s)?

How does a delta form at the meeting place of sea and river water ?