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Question
How is light scattered by the air?
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Solution
Scattering is the phenomenon of change in the direction of light rays when they travel through Earth's atmosphere. Air is a mixture of gases, smoke, dust and very fine particles. As the rays of light fall on these particles, these rays are spread/scattered in all directions. It is a natural phenomenon which is observed on a daily basis.
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| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
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