Question

Consider the following statements:
(1) PAN is secondary air pollutant
(2) BOD and COD values are indicators of water pollution level.
Which of the statements given above is/are correct?

• A. both 1 and 2
• B. 1 only
• C. 2 only
• D. neither 1 nor 2

Answer 1

Answer: (A)

Correct answer is (a) both 1 and 2