term 1 geography

4. a complex community made of living organisms that interact with eachother in an environment
5. a gradual increase in the overall temperature of he earths atmosphere
6. the change in global or regional climate patterns
8. describes land and climate conditions too dry to support vegatation
11. a layer of ozone high in the atmosphere that protects earth from harmful amounts of sun rays
12. negative effects of invasive species and invasive plants that do harm to the environment
16. condition in which not all people have access to enough safe nutritious food to sustain a healthy life
17. a condition in which all people in all time have access to enough safe, nutritious food to sustain a healthy life
18. all of the gasses that surround the earth
19. deterioration of a coast line due to natural or human effects
20. transformation of fertile land into dry desert
21. a measure of the number of deaths among the children under 1 years per 1000 children born
22. the variety of living organisms found in an environment

1. a range of substances (for example, litter) that causes harm to an environment
2. a measure of amount of salt present in the soil
3. a range of heavy metals, oils and pesticides that do harm to the environment
7. the wearing away of the earths surface by wind, water or ice
9. an industrialised country with a well developed economy
10. the removal of trees and other plant life from a forested area
11. ongoing decrease in the PH level of the earths oceans
13. an organism that is not native to an area and who's introduction has a negative effect on its new environment
14. a term used to describe a range of important resources, processors and benefits that healthy ecosystems provide to humans
15. any substance that is released into the environment that causes harm