8. cutting down or burning trees to clear an area of land

7. the amount of carbon dioxide that people's activities produce

6. things which are found in nature and can be used for economic gain

3. a slow increase in the Earth's temperature

2. materials like oil,rubber or cotton,which are used to produce something else

5. a place where rubbish is buried

4. energy not created from fossil fuels

1. the activity of buying or using products or resources