By population concentration and density
Answer: "hydrologic cycle" .
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Answer: Below
Explanation:
You can encourage for people to plant trees, maybe try to organize plans at your school with some other students. Trees absorb pollution chemicals in the air and filter dirty particles out of the air by trapping them on their bark and leaves
You can encourage your parents and other close adults to don't use their car as much, it would be good for the environment, and good for the adults as walking and biking can be a workout, if you have to use a car you can, I also encourage using public transportation and carpooling, where lots of people can get their destination at the same time using the same vehicle
Answer:
European nations used their Pacific Island colonies in various ways. Some islands were essentially plantations and were dedicated entirely to agricultural production on a large scale. Still other islands served as military bases, nuclear test sites, or trust territories.
Explanation:
