Class 12 Biology Environmental Issues Pollution

Easy

Define $BOD$ (Biochemical Oxygen Demand).

A
Amount of oxygen required for photosynthesis.
B
Amount of oxygen required by bacteria to decompose organic matter in water.
C
Amount of oxygen present in water for aquatic life.
D
Amount of oxygen released by aquatic plants.

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Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

Subtopic

Pollution

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