About what percentage of the workforce of North America is currently employed in the primary or secondary sectors of the economy?
A) 5%
B) 20%
C) 40%
D) 50%
B
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This graph illustrates ________
A) how supply and demand dictate the price of a product or service B) how the supply of a product or service dictates demand for it C) how price dictates the supply of and demand for a product or service D) how the demand for a product dictates its price
A population's growth rate is determined by ________
A) birth and immigration rates B) birth, death, immigration, and emigration rates C) birth rate and ecological resilience D) birth rate
Explain why even small changes in sea level will have a profound effect on human civilizations
What will be an ideal response?
According to the three-cell general circulation model, the driest regions on Earth should be found near:
a. The equator and 60 deg latitude. b. The equator and 30 deg latitude. c. 30 deg latitude and the polar regions. d. 30 deg latitude and 60 deg latitude.