SSC IB ACIO Grade II Mock Test 2023 General Knowledge Ecology and Environment Environmental pollution
Which one of the following are the benefits of Hydrogen-Enriched Compressed Natural Gas (HCNG)?
1. Reduces Nitrogen Oxide emissions.
2. Reduces carbon emission
3. Increases fuel efficiency
Select the correct answer using the codes given below:
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3