Across
- 2. Disease-causing organisms and viruses
- 4. The process of heating ore beyond its melting point
- 5. all the land of an area that supplies water to a particular river system
- 7. Electricity generated by the combustion of biomass
- 9. The ability to do work or cause a change
- 12. When water molecules are broken down into hydrogen and gas by an electric current that runs through the water
Down
- 1. A form of landscaping irrigation that requires much less water
- 3. large lakes that store water for human use
- 6. Kinetic energy of moving water turning turbines to generate electricity
- 7. Liquid fuels from biomass
- 8. The process of removing salt from seawater
- 10. The process in which fuel burns because it combines rapidly with oxygen
- 11. Energy made by the flow of an electric charge