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प्रश्न
Fill in the blanks :
_______ and ______ are the most common air pollutants.
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उत्तर
NO2 and CO are the most common air pollutants.
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संबंधित प्रश्न
What are the two ways in which nitrogen fixation occurs?
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Briefly state the importance of Carbon dioxide.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Sulphur dioxide gas dissolves in water to form ___________ acid.
Write the percentage of the gases present in air.
Soda bottle bursts sometimes when it is opened during summer. Why?
Why does a lump of cotton wool shrink in water?
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
“Air is not an elementary substance, but a composition”. Why?
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
