Asked by rose - Ms. sue

Need some infos. that could help me answer this questions.

four factors that produce changes in population size.
Answered by bobpursley
What about famine, reproduction laws (as in the one child law in China), war, disease (as in the Plague), and medical breakthrus (polio, measle vaccines, and maybe someday HIV vaccine).
Answered by Ms. Sue
Migration (immigration and emigration) also affect the population size.
Answered by rose - Ms. sue
Ms. Sue can you please direct me to some readings on the web. thanks
Answered by Ms. Sue
Bobpursley and I have given you five answers to this question. What else do you want to know?
Answered by Writeacher
Rose, remember to use those terms that Ms. Sue and Bobpursley gave you as search terms -- http://www.google.com -- to find websites.
Answered by Anonymous
humidity and relative humidity.
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