Câu 9

1. Air pollution is a consequence of fossil fuel burning by motor vehicles, factories, aircraft and rockets.

• A. product

• B. example

• C. harm

• D. result

2.If you book tickets early, you can get a discount.

• A. award

• B. prize

• C. deduction

• D. bonus

3. WWF was set up in 1961 and had its operations in areas such as the preservation of biological diversity.

• A. difference

• B. abundance

• C. variety

• D. plenty

4. I am very much interested in learning more about ecotourism and its benefits.

• A. problems

• B. advantages

• C. dangers

• D. issues

5. Mass tourism has contributed to the destruction of the environment.

• A. organization

• B. structure

• C. construction

• D. devastation

6. A lot of waste from hotels and vehicles is also discharged into the water and air.

• A. discussed

• B. collected

• C. released

• D. treated

7. To build hotels, people destroy forests.

• A. re-plant

• B. grow

• C. wipe out

• D. protect

8. Ecotourism helps tourists learn how to protect the environment.

• A. damage

• B. change

• C. adapt

• D. save

9. Campfires may cause forest fires if they are unattended.

• A. focused

• B. neglected

• C. looked after

• D. watched

10. Ecotourism is booming and tour operators say this helps nature.

• A. decreasing

• B. declining

• C. falling

• D. flourishing