With the closing of the American frontier, a shift occurred in North America from ________
A) An industrial based economy to an agricultural based economy
B) An agricultural based economy to a service based economy
C) An industrial based economy to a service based economy
D) An agricultural based economy to an industrial based economy
D
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If transportation costs were almost nonexistent — that is, if industries did not have to pay money to transport inputs and finished goods over long distances — what are the major changes that could occur in the automobile manufacturing industry?
What will be an ideal response?
Secondary ecological succession takes place after a clear-cut operation.
Answer the following statement true (T) or false (F)
During times when precipitation exceeds potential evapotranspiration,
A. extra water goes into soil-water recharge if the soil is below field capacity. B. there cannot be a deficit. C. water may go into deep percolation into groundwater. D. All of these.
Tectonic forces that pull parts of the crust away from each other are known as _______________ tectonic forces
Fill in the blank(s) with correct word