MCQ on Class 8 Pollution of air and water

Last updated on July 25th, 2022 at 04:02 pm

MCQ on Class 8 Pollution of air and water

 

MCQ on Class 8 Pollution of air and water | Class 8 Science MCQ | for the students of cbse / icse and all board exams.
  1. Fuels that are incompletely combusted produce …………. gas.
  •     carbon monoxide
  •     oxygen
  •     carbon-di-oxide

 

  1. The primary cause of Taj Mahal marble yellowing is:
  •     Rain Water
  •     None
  •     Acid rain

3.………….. is the contamination of water with unwanted and harmful substances.

  •     Water pollution
  •     Air Pollution
  •     None
  1. The presence of undesirable substances in the air is known as …………
  •     air pollution
  •     water pollution
  •     soil pollution
  1. Air pollution should be controlled by encouraging the use of LPG and CNG.
  •     None
  •     False
  •     True
  1. …………….. is caused by the release of hot water into water bodies.
  •     Thermal pollution
  •     None
  •     Water Pollution
  1. The ozone layer protects us against UV rays.
  •     None
  •     True
  •     False
  1. Which of the following fuels is the least polluting?
  •     Petrol
  •     CNG
  •     Diesel
  1. Sunlight can remove all contaminants from water.
  •     None
  •     False
  •     True
  1. CNG is the abbreviation for ……………….
  •     compressed nitrogen gas.
  •     None
  •     compressed natural gas.

Solve the Quiz

1.

………….. is the contamination of water with unwanted and harmful substances.

 
 
 

2.

The presence of undesirable substances in the air is known as …………

 
 
 

3.

Sunlight can remove all contaminants from water.

 
 
 

4.

CNG is the abbreviation for ……………….

 
 
 

5. The primary cause of Taj Mahal marble yellowing is:

 
 
 

6.

Air pollution should be controlled by encouraging the use of LPG and CNG.

 
 
 

7.

…………….. is caused by the release of hot water into water bodies.

 
 
 

8.

Fuels that are incompletely combusted produce …………. gas.

 
 
 

9. Which of the following fuels is the least polluting?

 
 
 

10.

The ozone layer protects us against UV rays.

 
 
 

 

Updated: July 25, 2022 — 4:02 pm

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