II. Choose the best answer to complete the sentences. 1. We should not only ____________ more trees but also put much more effort into protecting existing forests. A. plant B. reduce C. stop D. cut do...

1. We should not only ____________ more trees but also put much more effort into protecting existing forests. A. plant

2. Lead and aluminium are common ____________ that can be found in drinking water. D. contaminants

3. People all over the world are working to help save ____________ animals from extinction. B. endangered

4. A(n) ____________ is the total amount of greenhouse gases that are generated by our actions. A. carbon footprint

5. Some manufacturers offered incentives for return of batteries, so that they can ____________ or dispose of them safely. C. recycle
6. D. Wind
7. A. Water
8. D. species
9. A. contribute
10. C. fumes