ENERGY SOURCES

2. to take air into your lungs through your nose or mouth
3. to send air out of your lungs through your nose or mouth
5. to take air into your lungs through your nose or mouth
8. to produce energy, especially electricity
9. to finish, use, or sell all of something, so that there is none left
11. a gas breathed out by people and animals from the lungs or produced by burning carbon
13. fuels,such as gas,coal,and oil,that were formed underground from plant and animal remains millions of years ago
15. as much or as many as is possible
16. A person, animal, thing, or activity could harm you
17. to send air out of your lungs through your nose or mouth

1. a thing that you can choose to do or have out of two or more possibilities
4. a poisonous gas formed when carbon burns partly but not completely. It is produced when petrol is burned in car engines.
6. If something is plentiful, there is a lot of it available
7. causing damage or injury to somebody/something, especially to a person’s health or to the environment
10. being or using the power produced when the an atom is divided or joined to anothers
12. existing in limited quantities that cannot be replaced after they have all been used
14. Renewable forms of energy can be produced as quickly as they are used