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प्रश्न
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
पर्याय
health and comfort of animals
rate of evaporation from plants and animals
growth of plants
all the above
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उत्तर
all the above
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संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
Why do we see the sky and air clear and clean after rainfall?
Which of the following is true about oxygen?
Composition of the component of air ______ from place to place.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
“Air is not an elementary substance, but a composition”. Why?
______ is necessary for all acids.
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
