Across
- 3. energy the use of sustained nuclear fission to generate heat and electricity
- 4. conservation Turning lights off
- 7. mining The extraction of metal ore
- 8. energy coal, natural gas, oil
- 9. drainage highly acidic water rich in heavy metals.
- 10. mining removal of soil and rock
- 11. shale diesel fuel,
Down
- 1. crude oil
- 2. hydrate icelike solids that consist of methane and water
- 5. energy solar power and wind
- 6. waste a byproduct from nuclear reactors,