This figure shows ages of seafloor. Which pair of numbers likely has crust of similar age?
A. 1 and 2
B. 2 and 4
C. 2 and 3
D. 1 and 3
E. 3 and 4
Answer: B
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Which of the following is an historical example of a cultural push factor?
A) The U.S. government's policy of relocating the North America's indigenous population to reservations in the West based on ethnic difference. B) The British government allowed most of the population of Montserrat to migrate elsewhere in the 1990s after volcanic eruptions devastated large parts of the island. C) Many European farmers in the late 1800s chose to migrate to North America, as well as to Latin American countries where they felt that political and economic conditions would favor them. D) Changing climates likely encouraged the early migrations of hunter-gatherers. E) The United States actively sought Mexican agricultural laborers during and after World War II.
Which of the following factors would have the net effect of making a place warmer in the summer?
A) in the middle of a landmass B) near an ocean C) at a high latitude D) at a high elevation
Ultraviolet energy is light at wavelengths that are shorter than the range of human vision, and near-infrared energy is energy at wavelength just longer than human eyes can see
Indicate whether the statement is true or false
By 2000, the population of Latin America and the Caribbean had reached about ________ million
A) 25 B) 75 C) 200 D) 525