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प्रश्न
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
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उत्तर
Nitrogen and oxygen together make up 99% of the air.
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संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Briefly state the importance of Water vapour.
Name three noble gases present in the air. State their one industrial use
Classify Water. Also give a balanced equation to prepare it.
Classify Carbon dioxide. Also give a balanced equation to prepare it.
Name the components of air with their approximate percentage by volume in air. Does the percentage by volume of each component remain the same, in the atmosphere of different parts of the world? Explain with reasons.
Explain the importance of nitrogen of the air for plant growth.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
______ is used as a substitute for compressed air in tyres.
Observe the picture given in Fig. carefully and answer the following questions.
Can you comment on the air quality of the place shown in Fig?
