Which of the following patterns refers to a quasi-biennial oscillation?
A. reversal of stratospheric winds above the tropics
B. 2 million-year cycle of ice advances and retreats
C. cycle of increase and decrease in carbon dioxide concentrations
D. 22-year cycle of sunspots
Answer: A
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The oceans are part of Earth’s ____
a. biosphere b. hydrosphere c. lithosphere d. mesosphere e. atmosphere
Why are "growth" and "development" NOT interchangeable terms?
A) "Growth" normally refers to improvements, while "development" usually refers to an increase in the size of a system. B) "Growth" normally refers to the economic system, while "development" normally refers to the political system in a country. C) "Growth" normally refers to the standard of living, while "development" normally refers to the economic system in a country. D) "Growth" normally refers to the increase in agricultural output, while "development" usually refers to the improvement in the educational system of a country. E) "Growth" normally refers to increase in the size of the system, while "development" usually refers to improvements.
________ percent of London, England's citizens are born outside of the United Kingdom
A) 10 B) 25 C) 33 D) 50 E) 66
Hess's 1960s theory of mantle convection and seafloor spreading was essentially correct.
Answer the following statement true (T) or false (F)