EASY
4th Tamil Nadu Board
IMPORTANT
Earn 100

What is the importance of air in our daily life?

Important Questions on Air We Breathe

MEDIUM
4th Tamil Nadu Board
IMPORTANT

Tick the object which gives out water vapour.

EASY
4th Tamil Nadu Board
IMPORTANT
You might have seen some huge colourful balloons flying high in malls. Those balloons are filled with nitrogen gas. Write the reason for filling nitrogen gas in balloons.
MEDIUM
4th Tamil Nadu Board
IMPORTANT

Tick the causes of global warming.

EASY
4th Tamil Nadu Board
IMPORTANT

Choose the correct answer.

Air is a _____.

EASY
4th Tamil Nadu Board
IMPORTANT

Choose the correct answer.

Root nodules of some plants contain _____.

EASY
4th Tamil Nadu Board
IMPORTANT

Choose the correct answer.

The major cause of air pollution is _____.

EASY
4th Tamil Nadu Board
IMPORTANT

Who am I?

I am a mixture of gases.

MEDIUM
4th Tamil Nadu Board
IMPORTANT

List the uses of oxygen.