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प्रश्न
Which gas in the atmosphere is essential for respiration?
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उत्तर
Oxygen is essential for respiration.
संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Solution of carbon dioxide in water is called _________ acid.
Tick (√) the most appropriate answer.
The humans pollute the air by :
Give reason:
A burning candle stops burning if covered with a glass tumbler
Give a reason why water droplets appear on the outer surface of a tumbler containing ice.
Nitrogen is _______ than air.
The amount of water vapour in the air is more in windy places than in other areas.
Tri oxygen molecule is known as ______.
______ gas is essential for the proper growth of all plants.
Write the reaction of carbon dioxide with lime water.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain ______.
