Q. Consider the following statements
1. The Biological Demand for oxygen is directly proportional to the quantity of discharge of waste in water bodies.
2. Increase in water temperature decreases dissolved oxygen in water which adversely affects aquatic life.
Select the correct answer from the following codes
A. Only 1
B. Only 2
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Both 1 and 2
