state gov UPSSSC Van Daroga Mock Test 2022 General Knowledge Ecology and Environment Environmental pollution
With reference to Hydrogen Sulfide gas, consider the following statements:
1. It is a product of natural gas refineries.
2. It is formed from decomposing underground deposits of organic matter such as decaying plant material.
3. It is extremely flammable and highly toxic.
Which of the statements given above are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3