The debris flow of Nevados Huascarán (Peru) travelled down valleys at speeds of ________ per hour.
A. 130 km (80 mi)
B. 170 km (105 mi)
C. 200 km (124 mi)
D. 210 km (130 mi)
Answer: B
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The two gyres in the North and South Pacific (and in the North and South Atlantic) converge at the ____________
equator. Fill in the blank(s) with the appropriate word(s).
What are the three possible explanations for the distribution of paleomagnetic data? What will be an ideal response?
Sustainable economic and environmental policies will shift the focus from
A) sustainability to productivity. B) growth to the well-being of humans. C) productivity to growth. D) productivity to profits.
Rates of physical weathering in deserts are high, even though there isn't a great deal of precipitation, because it is usually heavy when rain does fall
Indicate whether this statement is true or false.