About how many kilometers (miles) is it from the center of Earth to the outer edge of the outer core?
A) 12,523 kilometers (7,827 miles)
B) 6,370 kilometers (3,980 miles)
C) 1,264 kilometers (790 miles)
D) 2,880 kilometers (1,800 miles)
B
Environmental & Atmospheric Sciences
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Light behaves as a particle when it
A. travels in waves. B. strikes a surface. C. both about equally D. none of the above
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The French-speaking Canadians are concentrated in which of the following locations?
A. the Maritime Provinces B. Quebec C. Saskatchewan D. Vancouver, B.C.
Environmental & Atmospheric Sciences
Earth's climate has become increasingly warmer and drier since the end of the Cretaceous Period, 65 million years ago.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
Developing countries (including Russia and China) consume approximately ________ percent of the world's fossil fuels
A) 40 B) 50 C) 60 D) 70 E) 80
Environmental & Atmospheric Sciences