Which of the following products made its way to the New World as part of the Columbian Exchange?
A) corn
B) wheat
C) potatoes
D) tomatoes
E) avocados
B
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Standard sea level atmospheric pressure in the U.S. is approximately 29.92 inches of mercury
Indicate whether the statement is true or false
In the diagram below, which layer is able to flow rather than being brittle?
A. 1 because water helps lubricate it B. 1, 2, and 3 because it is not under as much pressure as 4 C. 4 because it is under so much more pressure than 1, 2, and 3 D. 2 because the rocks are of a different composition than in the other layers
What is the origin of smooth troughs (T on this figure) cutting across the landscape in the Great Lakes area?
A) The areas were covered by soft marine sediments.
B) A huge flood coming from Iowa flowed toward the Great Lakes.
C) Glaciers carved out the smooth troughs.
D) All of these are correct.
Aboriginals now control about ________ percent of Australian land
A) 50 B) 10 C) 30 D) 15 E) 75