Non-renewable Energy

1. , those gathered by individuals for their own use such as wood, charcoal and animal waste.
4. ,one nuclear disintegration per second 1.
6. ,fossil fuels (coal, oil, natural gas) and nuclear fuels.
8. , the reaction that powers the Sun and other stars.
9. , a graph that shows the point at which world oil production would reach a maximum and the point at which we would run out of oil.
11. ,a mixture of hydrocarbons, water, and sulfur that occurs in underground deposits.
14. ,takes hundreds of millions of years to form.
16. ,the idea that the rate of global oil production is near or past its peak and will soon begin a long-term decline.
18. , the ratio between gross inland energy consumption (GIEC) and gross domestic product (GDP), calculated for a calendar year.
19. ,it is formed from remains of small animals, algea and protists.
20. ,are generally used in electrical generation, engines, and propulsion systems.

2. ,those that are bought and sold, such as coal, oil and natural gas.
3. , using fuel to generate electricity and produce heat.
5. ,cylindrical devices that can be inserted between the fuel rods to absorb excess neutrons, thus slowing or stopping the fission reaction.
7. ,a degraded type of petroleum that forms when a petroleum migrates close to the surface, where bacteria metabolize some of the light hydrocarbons and others evaporate.
10. ,is the fuel that is used in a nuclear reactor to sustain a nuclear chain reaction.
12. ,a network of synchronized power providers and consumers that are connected by transmission and distribution lines and operated by one or more control centers.
13. , slow-flowing, viscous deposits of bitumen mixed with sand, water, and clay.
15. , a solid fuel formed primarily from the remains of trees, and other plan material that were preserved 280-360 million years ago
17. , a nuclear reaction in which a neutron strikes a relatively large atomic nucleus and then splits into two or more.