Across
- 2. natural substances, e.g. water, that are used in human activity
- 5. carbon dioxide produced by cars, factories, etc. that harms the environment
- 7. harm that will last for a long time or forever
- 8. to exchange one thing for another thing
Down
- 1. to cut down all the trees
- 3. to stop considering something as a possibility
- 4. farm animals and birds, e.g. cows and chickens
- 6. health and hapiness