EASY
7th ICSE
IMPORTANT
Earn 100

With the help of a diagram, describe how the balance between oxygen and carbon dioxide is maintained.

Important Questions on Air and the Atmosphere

EASY
7th ICSE
IMPORTANT
A substance that contaminates air is called a pollutant.
MEDIUM
7th ICSE
IMPORTANT
Soot is a type of particulate pollutant that can be seen with the naked eye.
EASY
7th ICSE
IMPORTANT
Ozone may be good for us or harmful to us depending on where it is present.
EASY
7th ICSE
IMPORTANT
The compounds of oxygen are helpful in clearing up atmospheric pollution.
EASY
7th ICSE
IMPORTANT
A clean home is never a source of pollution.
EASY
7th ICSE
IMPORTANT
Which of the following is not a pollutant?
EASY
7th ICSE
IMPORTANT
Ozone helps in _____.
EASY
7th ICSE
IMPORTANT
Which of the following is not true?