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प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
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उत्तर
Helium gas is used for filling weather observation balloons.
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संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
Complete and balance the following equation
CaO + H2O →
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
Why is carbon-dioxide gas used to extinguish fire?
______ is the percentage of nitrogen in air.
The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.
Observe the picture given in figure carefully and answer the following questions.
- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
