Class VIII

What causes pollution
  1. Human activities
  2. Trees
  3. Both of these
  4. None of these
Green House gas is
  1. Nitrogen
  2. Oxygen
  3. Methane
  4. Carbon dioxide
The substances which contaminate the air is called ____?
  1. Air pollution
  2. Air pressure
  3. Air Pollutants
  4. All of the above
Most polluted river in the world is
  1. Yamuna
  2. Cavery
  3. Chenab
  4. Ganga
The Taj Mahal is being affected by
  1. Noise pollution
  2. Air pollution
  3. Water pollution
  4. None of these
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