Across
- 2. the energy that becomes from water
- 4. the object that help to create wind energy
- 5. types of energy and power that will finish
- 8. all the energy that becomes from sources that will never end
Down
- 1. types of pollution that keep the temperature in the earth
- 3. where I can put the rubbish
- 6. type of air pollution that we found frequently in the city
- 7. thanks to this process we don't waste useful materials