MEDIUM
Earn 100

What do you do to make the windmill rotate continuously?

Important Questions on Air Around Us

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere

What are the limitations in harnessing wind energy?

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere

Describe what is happening in the picture below.

Question Image  

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Why do we have windows in our house? 
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Moving air helps
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
_____ causes drying of clothes on a hot and sunny day.  
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
We cannot use wind energy to produce electricity.
MEDIUM
Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Write two uses of air.
HARD
Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Why do wet clothes dry faster on a sunny day?
EASY
Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
 While drinking water from his water bottle, Sameer spilt some water on his uniform. By the time he reached home his uniform was dry. How? 
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
_____ things need air to live.
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere

Why do we need air?

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere

Rearrange the letters in the bracket to fill in the blanks.

We need air to _____(ERBATEH)

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
How do living things use air?
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
We need air to 
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
The clouds are largely made up of
MEDIUM
Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere

Rearrange the letters in the bracket to fill in the blank.

We need air to light a _____(IRFE)

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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
This is required for burning.
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Cotyledons are also called-
MEDIUM
Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
What is the importance of water vapour in the air?
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Science>Chemistry>Air Around Us>Replacement of Oxygen in the Atmosphere
Moving air is useful. Mention two ways in which we use it.