Need some infos. that could help me answer this questions.
four factors that produce changes in population size.
6 answers
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).
Migration (immigration and emigration) also affect the population size.
Ms. Sue can you please direct me to some readings on the web. thanks
Bobpursley and I have given you five answers to this question. What else do you want to know?
Rose, remember to use those terms that Ms. Sue and Bobpursley gave you as search terms -- http://www.google.com -- to find websites.
humidity and relative humidity.
5 answers