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प्रश्न
In a number of musical instruments, air plays an important role. Can you name some such instruments?
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उत्तर
Such instruments are flute, mouth organ, trumpet, shehnai and harmonium.
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संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Discuss harmful effects of greenhouse effect.
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_____________ discovered the oxygen gas.
Give two uses of the following component present in air:
nitrogen
Describe a simple experiment with the help of a diagram to show that Air has mass
State the meaning of the term atmosphere.
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Air is a ______ of some gases.
