Approximately how many years ago did our species, Homo sapiens, begin to migrate out of Africa and settle in Europe, Asia, and Australia?
A) 100 million years
B) 100,000 years
C) 1,000 years
D) 1 million years
E) 10,000 years
B
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In the late nineteenth century, Britain was virtually alone in striving to gain new colonies
Indicate whether this statement is true or false.
The following diagram illustrates the Hydrologic Cycle. Match the item below to the arrow on the diagram (note: some items may be used for more than one arrow).Example: If you believe that water passes from clouds to streams by evaporation then choose that answer for arrow 3.
Match the item below to the arrow on the diagram for number 2. (Note: some items may be used for more than one arrow).
A. Evaporation B. Infiltration C. Transpiration D. Runoff E. Precipitation
Given what you have already learned in this chapter, predict which listing below shows the correct rank order for states with the greatest number of tornadoes in March, June, and August.
A. Florida, Oklahoma, Minnesota B. Minnesota, Oklahoma, Florida C. Oklahoma, Florida, Minnesota
In the U.S., ambient air concentrations of which of the following have declined the most since 1980 compared to its health and safety standard?
A) lead B) NO2 C) ozone D) SO2 E) CO