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प्रश्न
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
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उत्तर
The gas evolved as a product of combustion as well as respiration is carbondioxide.
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संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Discuss harmful effects of greenhouse effect.
Fill in the blank:
_____________ discovered the oxygen gas.
What is wind?
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
Name the following.
Gases that are harmful to the ozone layer
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Name a device which uses wind energy to generate electricity.
In a number of musical instruments, air plays an important role. Can you name some such instruments?
