1. B

2. C

3. C

4. D

5. A

6. B

7. C

8. B

There are number of things we can do if we want to help save our planet. For example, if we stop wasting paper and recycle paper and cardboard, we'll save some of the millions trees which are cut down every year. As far as the problem of rubbish is concerned, if we recycle bottles and cans and organic waste, and stop taking shopping from the supermarket, this will all make a big difference. We also have to stop making unnecessary car journeys so as to cut down air pollution. Try walking or using a bike instead. Water is another problem, and we should all take showers, not baths, to save water. Finally, we need to stop using so much energy, so try changing to save-energy light bulbs, and turning off unnecessary lights.