Percentage of nitrogen in air is

Important Questions on Air Around Us

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q A

Percentage of oxygen in air is 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q A

Plants respire with the help of tiny pores called.

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q A

Combustion is being helped by 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q B

Aquatic plants and animals breathe in _____ dissolved in water.
 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q B

Earthworms come out during rains because they need to breathe in _____.
 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q C

Plants do not need oxygen during the day. 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q C

Ozone-layer protects us from harmful ultraviolet radiation. 

EASY

6th CBSE

IMPORTANT

Science Success>Chapter 15 - Air Around Us>EXERCISES>Q C

Chlorophyll is not essential for photosynthesis.