Civil Services OPSC OAS Mock Test Series 2025 General Knowledge Ecology and Environment Environmental pollution
Consider the following statements:
1. Nitrous oxide is less potent than carbon dioxide at heating the atmosphere.
2. Mercury can be toxic and can cause damage to the nervous and immune system.
3. Phosphates can be used to treat a variety of water pollution problems
How many of the above statements is/are correct?
1
Only one
2
Only two
3
All three
4
None