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What would happen if there is no tree on the Earth?

Important Questions on Air and Atmosphere

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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 1

How can we release some of the air from the glass shown in the given diagram?

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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 2
The air over industrial cities has usually a higher amount of one of the following components than normal air. This component is:
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IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 3
About one-fifth of ordinary air is:
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IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 4
The component of air which is utilised by the plants in respiration is:
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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 5
In an activity to show that air is mainly a mixture of two gases (nitrogen and oxygen), the carbon dioxide produced by the burning of candle in air is absorbed by dissolving a substance X in water in the trough. The substance X is :
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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 6
Which of the following air pollutant reduces the oxygen-carrying capacity of blood to a large extent?
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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 7
The constituent of polluted air which contributes in producing acid rain is:
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Lakhmir Singh's Science Chemistry>Chapter 5 - Air and Atmosphere>EXERCISES>Q 8
Which of the following is not an air pollutant?