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प्रश्न
Name the following.
Gases that are harmful to the ozone layer
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उत्तर
Carbon tetrachloride
संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Fill in the blank:
_____________ discovered the oxygen gas.
What is wind?
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Name a device which uses wind energy to generate electricity.
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
The process of conversion of iron into hydrated form of oxides is called _______.
Wind does not help in the movement of which of the following?
Make sentences using the given set of words.
Air, wind, motion, called
