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Unit 3 CONSERVATIONn. 保护ConservationProtectionWhat needs to be protected?The Earthour planetplantsanimalsour landforestsoceansWhy do animals need protection?The animals are becoming extinct.They are killed by pollution. They cannot find enough food. dinosaur polar bearThey are killed by climate change.They are killed for body parts or food. fur & skinmeatWhy do forests/trees/plants need protection?The forest has been destroyed. Why do the earth need protection?environmental problemsName some major environmental problems we are facing currently. 1. Pollution: water pollution, air pollution, soil pollution, plastic pollution.2. Global warming.3. Climate change.4. Overpopulation.5. Waste disposal.6. Loss of biodiversity.7. Deforestation. What should we do to protect them?We need to do (pl