2013년 12월 8일 일요일

CH 13 : The Midwest

In nineteenth century, the Midwest was the heartland of America 
with connecting with transportation.

The Midwest

There are several large lakes in the Midwest.

Climate of the Midwest vs San Francisco
The Midwest's climate


It's opposite for precipitation for monthly average.


Population of the Midwest
population change between 2000 and 2010




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