Composition of Air

IMPORTANT

Composition of Air: Overview

In this topic, we will learn about the major components of the air. It discusses the importance of water vapour, oxygen, nitrogen and carbon dioxide. We will learn about dust and smoke in detail.

Important Questions on Composition of Air

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The gas that does not involve in respiration of humans is_____.  

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Write two physical properties of nitrogen gas.

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The percentage of nitrogen in the air is_____.

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The major part of the air which does not support combustion is

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The main component of air is oxygen.

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If the given pie chart represents the composition of air, which part of the chart represents nitrogen, oxygen and other gases.
Question Image

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Draw any two things that give out smoke. How do you think smoke make affect us?

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Fill in the blank using the right word from the bracket given below.

(three, blue, cloud, ice)

Evaporated water becomes a _____.

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A gas used in brightly coloured lights is

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State the uses of carbon dioxide.

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State the uses of nitrogen and oxygen.

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State the names of five rare gases in the air.

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Air contains water vapour and it affects the weather of a particular place,

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Which of these components of air can cause disease if the air is breathed through the mouth?

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Which of the following components of air are harmful to the living beings?

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What are the tiny shiny particles moving in the beam of sunlight?

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Which component of the air takes up nearly four-fifth of the space that air fills?

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A windmill uses wind energy to generate _____.

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Burning can occur only in the presence of _____.

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_____ gas is the major component of air.