Across
- 3. warming : the earth becoming hotter over time
- 5. : the cutting down of many trees in a forest
- 6. effect : the earth getting hotter because of gases in the air
- 8. : when a type of animal or plant dies out
- 10. change : big changes in the world’s weather over time
Down
- 1. : dirty or harmful things in the air, water, or land
- 2. : things that people throw away
- 4. fuels : fuels like coal, oil, or gas from the ground
- 7. : to use old things again to make new things
- 8. species : animals or plants that may soon disappear
- 9. energy : energy from nature like the sun, wind, or water