Blowhot blow cold

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__________ air is light and rises up.

• HOT

• COLD

• WET

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__________ air is heavy and comes down.

• COLD

• HOT

• WARM

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Our breath is __________ than hot tea and hence we blow air to cool tea.

• COLDER

• HOTTER

FILL IN THE BLANK:-

We __________ our hands in winter by blowing on them, when they are cold.

• WARM

• COOL

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The air we breathe out contains __________ which turns into drops of water when comes in contact with a cold surface.

• water vapour

• Dust

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The wood cutter kept blowing into his hands while cutting the wood because to __________ them.

• cool

• warm

Fill in the blanks:-

A popcorn seller fans the burning coal to increase the __________ supply.

• oxygen or air

• carbon dioxide

Fill in the blanks:-

We use a __________ to listen to the sound of a heartbeat.

• stethoscope

• microscop

Whenever the air flows __________ the paper snake will move in a clockwise direction.

• downwards

• upwards

Dr . Zakir Hussain wrote stories for children .He is ___________

• 3rd president of India

• 1st President of India

• A famous Tabla player

• None of these