Civil Services Haryana PSC HCS Mock Test 2024 General Knowledge Ecology and Environment Environment Problems
Which of the following measures can be applied to control Vehicular Air Pollution?
1. Use of leaded gasoline
2. Reduce sulphur content in petrol and diesel
3. Discourage the use of catalytic converters in vehicles
4. Use of methanol-blended petrol
Select the correct answer using the code given below.
1
1 and 3 only
2
2 and 4 only
3
2 and 3 only
4
1, 2, 3 and 4