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प्रश्न
What is the composition of air?
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उत्तर
Air is a mixture of 79% nitrogen, 20% oxygen, 1% carbon dioxide, water vapours, and some other gases. Air also contains dust particles.
संबंधित प्रश्न
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
State the utility of oxygen for respiration in plants
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Why do we see the sky and air clear and clean after rainfall?
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
How do the roots of land plants get oxygen for breathing?
Which of the following is true about oxygen?
The main component of air is oxygen.
The components of air which are harmful to living beings are ______.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
