state gov TSPSC Group 4 Mock Test 2022-2023 General Knowledge Ecology and Environment Environmental pollution
Consider the following pollutants:
1. Mercury
2. Arsenic
3. Benzene
4. Cadmium
5. PM10
Which of the above are notified by National Ambient Air Quality Standards (NAAQS) as pollutants?
1
1, 3 and 5 only
2
2, 3 and 5 only
3
1, 2, 4 and 5 only
4
1, 2, 3, 4 and 5