Class VIII

CNG is a
  1. Polluted fuel
  2. Clean fuel
  3. Harmful fuel
  4. None
Air pollution causes
  1. Global warming
  2. Respiratory problems
  3. Soil erosion
  4. None of these
Green House gas is
  1. Nitrogen
  2. Oxygen
  3. Methane
  4. Carbon dioxide
Pollution of water is responsible for
  1. Oil refineries
  2. Paper factories
  3. Sugar mills
  4. All
Highest percentage of air consists of
  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Argon
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP