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प्रश्न
Which of the following is true about oxygen?
पर्याय
Completely burning gas
Partially burning gas
Doesn’t support burning
Supports burning
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उत्तर
Supports burning
APPEARS IN
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 :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Briefly state the importance of Carbon dioxide.
Write fully balanced equation for the following :
CO2 + H2O →
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
_____ gas turns lime water milky.
The main component of air is oxygen.
The amount of water vapour in the air is more in windy places than in other areas.
The air in coastal areas have more oxygen.
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?
