Ответ:

1. People need to be informed about environmental problems.

2.Cars can be very harmful to people and the environment.

3. Past industrial activities have polluted our planet.

4. The amount of waste and rubbish is increasing.

5. A lot of forests have been cut because of urban development.

6. The effects of acid rain on the environment can be very serious.

7. Air pollution produces harmful pollutants that can affect our health in many ways.

8. Industry can be very harmful to people and the environment.