Question 2:

Just like bees, ____ also supports pollination, as pollens get blown away by ___ from plants,  cross pollination takes place.

Question 3:

Use of pesticides, fertilisers pollute the air by releasing harmful _______ into it.

Question 4:

________ minerals include sand, gravel, cement, salt, sulphur, phosphorous, diamonds and gems.

Question 5:

Groundwater gets contaminated due to the use of ________, fertilisers and chemicals and causes serious health hazards to the wildlife in aquatic ecosystems such as diseases, birth defects, and reproductive failure. 

Question 6:

Air pollution causes a variety of environmental effects such as _______, ______, ________, damage to crops and forests, and climate change.

Question 7:

Flow of air at high speed is called ______, and it is used to generate power by installation of  turbines.

Question 8:

The layer of air above the earth’s surface is called __________. 

Question 9:

_______ acts as a universal solvent and gases such as oxygen, nitrogen, carbon dioxide and solids such as salts get readily dissolved with it.

Question 10:

The air that we breathe is present in the first zone of earth known as _______. It is 10 to 12 km from the surface of the earth.