UNIT 5 AMAZE B

2. no longer existing.
7. of or from the sun, or using the energy from the sun to produce electric power
10. being or using the power produced when the nucleus of an atom is divided or joined to another nucleus.
11. wood that has been cut into various lengths for building.
13. small in amount or number
15. existing in limited quantities that cannot be replaced after they have all been used.
16. to take the place of something, or to put something or someone in the place of something or someone else.
17. a fuel that is made from living things or their waste.
18. a hard, black substance that is dug from the earth in pieces, and can be burned to produce heat or power, or a single piece of this.
20. producing electricity by the force of fast moving water such as rivers or waterfalls.

1. relating to forms of energy that are produced using the sun, wind, etc., or from crops, rather than those using fuels such as oil or coal.
3. a substance, such as water, that is not solid or a gas and that can be poured easily.
4. in danger of being harmed, lost, unsuccessful, etc.
5. to make something or bring something into existence.
6. having or producing powerful and dangerous energy that comes from the breaking up of atoms.
8. able to be obtained, used, or reached.
9. gas, found underground, that is used as a fuel.
12. fuels, such as gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago.
14. all the plants, animals, and people living in an area considered together with their environment as a system of relationships.
19. a current of air moving approximately horizontally, especially one strong enough to be felt.