Chapter 25 Vocabulary Crossword

2. Production of two unstable forms of energy at the same time from the same process, which can conserve resources and generate income
6. Involves global management of Earth's natural resources to ensure that current and future energy needs will be met without harming the environment
8. Black coal having a relatively high volatile content
9. Nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
10. Soft brownish coal showing traces of plant structure, intermediate between bituminous coal and peat
13. A type of conservation in which the amount of work produced is compared to the amount of energy used
15. Thin, transparent wafer that converts sunlight into electrical energy and is made up of two layers of two types of silicon

1. Coal of a hard variety that contains relatively pure carbon and burns with little flame and smoke
3. Energy produced by Earth's naturally occurring heat, steam, and hot water
4. Fuels derived from living things; renewable resources
5. Power generated by converting the energy of free-falling water to electricity
7. The process in which a heavy nucleus divides to form smaller nuclei and one or two neutrons and produces a large amount of energy
11. Light, spongy, organic fossil fuel derived from moss and other bog plants
12. Molecules with hydrogen and carbon bonds only
14. Nonrenewable energy resources formed over geological time from the compression and partial decomposition of organisms that lived millions of years ago