state gov TSPSC Group 2 (తెలంగాణ గ్రూప్ 2) Mock Test Series General Knowledge Ecology and Environment Environmental pollution
Which of the following help in the formation of ground-level ozone?
1. NOx
2. Hydrogen
3. Sunlight
Select the correct answer using the code given below.
1
1 and 2 Only
2
2 and 3 Only
3
1 and 3 Only
4
1, 2 and 3