Advertisements
Advertisements
प्रश्न
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
Advertisements
उत्तर
Nitrogen and oxygen together make up 99% of the air.
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
Give two examples of modern fuels.
With the help of a labeled diagram, describe a simple experiment to show the presence of oxygen and nitrogen in air using a piece of white phosphorus.
Name the following:
The type of bacteria which directly absorb nitrogen from the air and converted soluble nitrates in the soil.
Soda bottle bursts sometimes when it is opened during summer. Why?
The component of air used by green plants to make their food, is ______.
Oxygen is used to oxidize ______.
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
Explain the following observations very briefly
An empty glass in fact is not empty.
