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प्रश्न
What is global warming?
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उत्तर
The increased greenhouse effect is caused due to increase in air pollutants and it results in the average increase in temperature of the atmosphere. This is called Global warming.
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संबंधित प्रश्न
Give two uses of the following component present in air:
nitrogen
How is air useful to windmills?
Name two air pollutants which cause acid rain.
Why is it said that-
Air is a homogeneous mixture of various gases.
State the meaning of the term Air
Fill in the blank:
Rusting is a chemical reaction which involves _____ oxidation.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
Name a device which uses wind energy to generate electricity.
About 78% of the volume of air is ______.
Explain the following observations very briefly
A firki does not rotate in a closed area.
