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प्रश्न
The composition of air is always exactly the same.
विकल्प
True
False
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उत्तर
The composition of air is always exactly the same- False.
Correct statement
The composition of air changes slightly place to place.
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संबंधित प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
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About 78% of the volume of air is ______.
