Across
- 2. to prevent someone or something from being harmed
- 3. a large area of land that is covered with trees; woodland
- 5. a flammable liquid made of refined petroleum used to fuel engines
- 7. to depend upon; to count on
- 9. able to replaced naturally or by good management and so can be used without the risk of using up the whole stock
- 10. a thick black liquid found underground and used as fuel and other products
Down
- 1. gas found underground and used as fuel
- 3. fuel that contains carbon and that is formed in the Earth over millions of years from plant and animal remains. Oil and natural gas are examples
- 4. a supply of something, such as money goods, that can be used be used by a person or country
- 6. able to be replaced naturally or by good management and so can be used without risk of using up the whole stock
- 8. existing in or produced by nature; not made by people
