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प्रश्न
Name the following:
The active component of air which supports combustion and is used up in burning
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उत्तर
Oxygen
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
Name and briefly explain four ways by which pollution of air is caused by humans.
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
List out the uses of nitrogen.
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
______ is responsible for making clouds.
Tri oxygen molecule is known as ______.
