Which of the following is the cause of extinction of plants and animals in water?
A. Nitrogen depletion
B. Chlorine depletion
C. Oxygen depletion
D. Ozone depletion
Answer:C
Which of the following is the cause of extinction of plants and animals in water?
A. Nitrogen depletion B. Chlorine depletion C. Oxygen depletion D. Ozone depletion