Across
- 2. Wind is used to produce electricity by converting the kinetic energy of air in motion into electricity
- 3. a renewable source of energy that generates power by using a dam or diversion structure to alter the natural flow of a river or other body of water
- 11. excessive grazing which causes damage to grassland
- 13. the natural home or environment of a plant, animal, or other organism
- 14. a machine that plays a key role in transforming fluid or air energy into usable work or electricity
- 15. a resource that cannot be replaced after being used through natural or human processes
- 16. a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons
- 17. energy from the sun that is converted into thermal or electrical energy
- 19. heat within the earth
- 20. renewable organic material that comes from plants and animals
Down
- 1. the process of transforming the economy of a nation or region from a focus on agriculture to a reliance on manufacturing
- 4. the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture
- 5. to cut down or remove all the trees from an area
- 6. the science or occupation of cultivating the soil, producing crops, and raising livestock
- 7. the greening of a city
- 8. a resource that can be replenished when used through natural or human processes
- 9. the increase in the proportion of people living in towns and cities
- 10. power produced by the surge of ocean waters during the rise and fall of tides
- 12. the two types of wind energy
- 18. a resource that can be replenished naturally over time