Cambridge Secondary (7-9). Stage 8. MCE Science. Student Book - Unit 3: Ecosystems - Question 57

Question 57

1. Deforestation is when farmed trees are cut down and replanted.
2. Overexploitation is when fishing is sustainable.
3. Acid rain is caused by excess carbon dioxide in the atmosphere.
4. Microplastics are large plastic bottles floating in the ocean.
5. The levels of toxic substances in organisms increase along a food chain.