"Biological Oxygen Demand" (BOD) is used as a standard measure for:
Verified Answer
A. Oxygen level in forest system
B. Oxygen level in animals
C. Oxygen level in atmosphere
D. Oxygen level in water system
Explanation:
Biological Oxygen Demand (BOD) is a measure of the amount of dissolved oxygen required by aerobic biological organisms to break down organic material present in a given water sample at a certain temperature over a specific time period. It is a key indicator of water quality and pollution.