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प्रश्न
List uses of oxygen.
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उत्तर
- All living things use oxygen for breathing.
- Oxygen is essential for burning.
- Oxygen cylinders are used in hospitals to enable patients to breathe when they cannot breathe normally.
- Oxygen is used in gas welding.
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संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
What are the main components of air?
Fill in the blanks
Plants and animals maintain the balance of carbon ___________and _________ in the air.
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
Why do we see the sky and air clear and clean after rainfall?
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
Carbon dioxide with water changes
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
