Q. Which of the following chemicals cause water pollution?
1. Arsenic
2. Copper
3. Zinc
Select the correct answer from the following codes
A. Only 1
B. Only 1 and 2
C. Only 2 and 3
D. 1,2 and 3
Answer: 1,2 and 3
1. Arsenic
2. Copper
3. Zinc
Select the correct answer from the following codes
A. Only 1
B. Only 1 and 2
C. Only 2 and 3
D. 1,2 and 3
Answer: 1,2 and 3