Across
- 2. is a measure which calculates the amount of carbon dioxide somebody or something produces.
- 6. is energy that comes from water, wind or the sun.
Down
- 1. is an activity that uses resources in a way which doesn't damage environment.
- 3. are things such as minerals or plants that exist in a place and are used by people.
- 4. are subjects such as biology, physics and chemistry which study things from nature.
- 5. is a building or group of building where sports, entertainment and fairs.