Across
- 1. The most abundant energy source in our universe(8)
- 4. The things which pollute(10)
- 7. Now in motors, an energy source(11)
- 9. The things which can be reproduced(9)
- 10. Powered by the sun(5)
Down
- 2. Heat energy from the earth(10)
- 3. A rare energy source derived from our body tissues(7)
- 5. A device which extracts energy and gives it out(7)
- 6. A common non-renewable source(9)
- 8. A harmful greenhouse gas, begins with M (7)