Air Composition and Properties Quiz
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Questions and Answers

What component of air does not support burning?

Nitrogen

What gas may cause suffocation in a closed room where material is burning?

Carbon dioxide

What do plants and animals consume for respiration?

Oxygen

What harmful components are produced by burning fuel?

<p>Smoke, gases, and fine dust particles</p> Signup and view all the answers

Why is it advisable not to burn dry leaves and discarded remains of crops?

<p>They pollute the surroundings</p> Signup and view all the answers

What did people think about air until the eighteenth century?

<p>People thought that air was just one substance.</p> Signup and view all the answers

What did experiments prove about air in the eighteenth century?

<p>Experiments proved that air is a mixture of many gases.</p> Signup and view all the answers

What is the importance of water vapour in air?

<p>The presence of water vapour in air is important for the water cycle in nature.</p> Signup and view all the answers

What happened to the candle covered with a glass tumbler in the experiment?

<p>The candle covered with the glass tumbler got extinguished after some time.</p> Signup and view all the answers

What component of air, which supports burning, is known as?

<p>The component of air which supports burning is known as oxygen.</p> Signup and view all the answers

What is air considered to be a mixture of?

<p>Air is considered to be a mixture of many gases.</p> Signup and view all the answers

What is the significance of the presence of water vapour in air?

<p>The presence of water vapour in air is important for the water cycle in nature.</p> Signup and view all the answers

What is the reason behind the candle covered with a glass tumbler getting extinguished?

<p>The component inside the glass tumbler, which supports burning, is limited.</p> Signup and view all the answers

What do experiments in the eighteenth century prove about air?

<p>Experiments in the 18th century proved that air is not just one substance.</p> Signup and view all the answers

What is the component of air that supports burning and is known as?

<p>The component of air that supports burning is known as oxygen.</p> Signup and view all the answers

What is the major component of air that does not support burning?

<p>Nitrogen</p> Signup and view all the answers

What gas may cause suffocation in a closed room where material is burning?

<p>Carbon dioxide</p> Signup and view all the answers

Why is it advisable not to burn dry leaves and discarded remains of crops?

<p>It pollutes the surroundings</p> Signup and view all the answers

What harmful components are produced by burning fuel?

<p>Smoke, gases, and fine dust particles</p> Signup and view all the answers

What is the purpose of the long chimneys in factories?

<p>To take harmful smoke and gases away from the surroundings</p> Signup and view all the answers

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