Presence of Air Around Us

IMPORTANT

Presence of Air Around Us: Overview

This topic covers concepts, such as, Air, Wind, Pinwheel, Weather Cock, Atmosphere, Availability of Air at High Altitudes, Role of Air in Pollination & Role of Air in Flight etc.

Important Questions on Presence of Air Around Us

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Air is a _____ of gases.

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What will happen to earth if there is lack of oxygen in the atmosphere for 20 seconds?

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Can you see the wind? How do you know blowing?

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Write the purpose of windmill.

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A wind is moving air.

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What is pinwheel?

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A pinwheel indicates the direction of the air.

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How would you show the presence of air around us?

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Name the following.
The gas used to fill air balloons.

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Unscramble the following word to make meaningful word.
ZOOEN 

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Unscramble the following word to make meaningful word. 

MPOTASEEHR 

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Which of these gases are the most responsible for the cause of air pollution?

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Name the gaseous pollutants responsible for air pollution.

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What is moving air called?

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When air blows very fast, it is called

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What is being done here to inflame fire in the oven? What do you learn from this? Write here.

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Where have you found the presence of gas?

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Write a short note on stratosphere.

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_____ is the blanket of air surrounding the earth.

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Thermosphere layer is characterised by its high temperature.