engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 People Development & Environment Environmental Issues Pollution
Which of the following is/are sources of water pollution?
1. Natural sources
2. Domestic sources
3. Agricultural sources
4. Industrial sources
select the correct answer from the following codes
1
1 and 2 only
2
2, 3 and 4 only
3
3 and 4 only
4
1, 2, 3 and 4