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प्रश्न
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
पर्याय
carbon dioxide
sulphur dioxide
nitrogen
noble gases
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उत्तर
nitrogen
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Fill in the blank :
________ is the most abundant inert gas present in air.
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.
Water containing dissolved carbon dioxide can dissolve marble.
What are the components of air?
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Soda bottle bursts sometimes when it is opened during summer. Why?
“Air is not an elementary substance, but a composition”. Why?
The components of air which are harmful to living beings are ______.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
A weather cock shows the ______ in which the air is moving at that place.
