Nature Cycles Matching - Skyndipróf
| __ | 1. | Animals eat carbon and then | | A. | gas in the atmosphere. | | __ | 2. | Animals get carbon by | | B. | with plants breathing in carbon dioxide. | | __ | 3. | Animals use carbon by | | C. | with bacteria on plant roots. | | __ | 4. | Carbon can be trapped | | D. | breathe out carbon dioxide. | | __ | 5. | Humans add carbon to the cycle | | E. | eating plants or other animals. | | __ | 6. | Humans pollute with nitrogen | | F. | by plants and animals dying and being deeply buried. | | __ | 7. | Nitrogen exists mainly as | | G. | by burning oil and coal. | | __ | 8. | Nitrogen is released as gas | | H. | by decomposers. | | __ | 9. | The carbon cycle begins | | I. | burning it as fuel. | | __ | 10. | The nitrogen cycle begins | | J. | by using lots of fertilizers. |
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