Question

and
E. Fill in the blanks:
1. The major components of air are
(78%) and
(21%)
2. When a forest fuel burns in insufficient amount of air,
is formed.
3. Contamination of physical environment is called
4. Acid rain is formed by the oxidation followed by dissolution
gases.
5. The undesirable particles and gases in air are called air
6. Suspended particles of dust, smoke and sand are called
7. Thermal power plants generate electricity by burning
such as coal and natural gas.
8. CFCs cause depletion of the
layer.
9. Two examples of greenhouse gases are
and
10. Waste water generated from household activities is also called
11. When lakhs of trees are planted in July every year, this is known as.
12. When deposited on plant leaves, SPM can hinder the process of
13.
- or
can be used to kill the disease causing microorganisms present in
water:
14. Algae can be used to produce oxygen by the
process.
15. Sedimentation of water is done by
(potassium permanganate/alum to remove suspended
particles.
16. Exhaust gases from vehicles contain
_(SO/CO).​

Answer 1

Answer:

1. Nitrogen and oxygen
2. Carbon monoxide
3. Pollution
4. sulphur dioxide and nitric oxide
5. pollutants
6. contaminants
7. fossil fuels
8. Ozone layer
9. Carbon dioxide and methane
10. domestic waste

13. chlorination and boiling

Answer 2

Answer:

Nitrogen and oxygen

Carbon monoxide

Pollution

sulphur dioxide and nitric oxide

pollutants

contaminants

fossil fuels

Ozone layer  

Carbon dioxide and methane

domestic waste  

13. chlorination and boiling

Explanation:  

plzzzzz make a brainlist