lhuang---research paper for Geography corse---at least 3 pages

As professor said, we should write the comparison of this theme, and related topics, across 3 different regions. This is a group project, our theme is “Population and Settlement”, I would chose to write topic "what factors effect on the change of Population" on three regions: CHINA, INDIA, U.S. The professor did not mention how many sources should we use, you could choose how many by yourself.