PDF chapter test TRY NOW
Fill in the blanks:
| endangered | food chain | extinct |
| reforestation | red data book | threatened |
| eggs | Bharatpur | wood pulp |
| 17 | recycling | natural reforestation |
1. Frogs are examples of small animals that forms the (two words) which are essential to maintain balance in the ecosystem.
2. International Union for Conservation of Nature maintains the .
3. To make one tonne of paper, trees are needed.
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