Excessive accumulation of organic matter in water bodies leads of :

Eutrophication in water bodies leads to

Eutrophiication in water bodies leads to High DO

The amount of organic matter in sewage water can be estimated by

Decay of organic matter lying under water releases ----gas

Assertion: Discharge of sewage into river results into a sharp details in disolved oxygen Reason:- Micro-organisms invovled in biodegradation of organic matter in the reciving water body produce a lot of oxygen to facilitate degration of organic matter.

BOD means..... (A) amount of oxygen needed for degradation in water (B) it is a measure of the organic matter in a water (C) it is a measure of inorganic matter in soil (D) both (A) and (B)

Excessive consumption of alcohol leads to

What is called the accumulated microorganisms and organic matter in the treatment of sewage?