Across
- 2. cycle the process of carbon atoms continually travel from
- 4. renewable resource an item that has a limited supply.
- 5. atmosphere to Earth and then back to the atmosphere.
- 9. resource a item that doesn't run out
- 10. cycle a path that all water follows as it moves around Earth in different states.
- 11. energy a source of power that is generated from heat rays.
Down
- 1. effect the process through which heat is trapped near the Earth's surface by substances.
- 3. fuels a source of energy that is formed in the Earths crust from decayed organic material.
- 6. power a renewable source of energy that generates power by using a dam or diverse structure to alter the natural flow of
- 7. impacts the changes to biophysical environments and to ecosystems, biodiversity, and natural resources caused directly or indirectly by humans.
- 8. energy source energy that comes from a natural resource that comes from the world.