Across
- 2. the U.S is categorized as which kind of demography
- 7. longterm shifts in temperatures
- 10. these kinds of species harm the environment
- 11. use of technology in agriculture spiked in 1950
- 12. what is the resource called that does not emit greenhouse gases
- 13. unchanged population (abbreviated)
Down
- 1. removal of trees
- 3. environmental substances that are harmful
- 4. creating monocultures is an example of
- 5. breeding mating animals with desired characteristics
- 6. short-term atmospheric conditions
- 8. coal, oil, and gas are an example of which kind of resource
- 9. the study of human populations
- 11. which invasive species traveled from cargo ships