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प्रश्न
Match the following
| 1. | Biotic factor | Terrestrial Ecosystem |
| 2. | Sewage | Land pollution |
| 3. | Fertilizers | Air pollution |
| 4. | Desert | Water Pollution |
| 5. | Smoke | Animals |
जोड़ियाँ मिलाइएँ
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उत्तर
| 1. | Biotic factor | Animals |
| 2. | Sewage | Water Pollution |
| 3. | Fertilizers | Land pollution |
| 4. | Desert | Terrestrial Ecosystem |
| 5. | Smoke | Air pollution |
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