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प्रश्न
Aerated water contains
विकल्प
air
oxygen
carbon dioxide
nitrogen
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उत्तर
Carbon dioxide
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
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.
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 component of air which is present more in industrial areas.
Explain why during an incident of fire, one is advised to wrap a woollen blanket over a burning object.
Write about the reaction of nitrogen with non metals.
How will you show that air is dissolved in water?
Which of the following components of air is present in the largest amount in the atmosphere?
Observe the picture given in figure carefully and answer the following questions.
- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
Explain the following observations very briefly
An empty glass in fact is not empty.
