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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 |
जोड़ियाँ मिलाइएँ
उत्तर
| Column A | Column B |
| (a) Global warming | 4. Methane |
| (b) Acid rain | 5. Nitrogen Dioxide |
| (c) Rust | 1. Hydrated ferric oxide |
| (d) Catalyst | 2. Manganese dioxide |
| (e) Photosynthesis | 3. Carbon dioxide |
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