Since most deserts have internal drainage, why are there through-flowing streams, such as the Nile,
Niger, Indus, and Colorado Rivers in some deserts? What will be an ideal response?
The headwaters of these rivers are outside the desert, and there is enough water to compensate for
losses by evaporation and infiltration.
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Which of these countries has the highest per capita water footprint?
A. U.S. B. Russia C. China D. Canada
Which of the following lessons was illustrated by flood data from the Colorado River and from the Yellowstone River?
A) Fifty years is a long enough record to record all but a 100-year flood. B) The largest flood possible along a river is likely to have been witnessed by humans. C) Few floods are ever larger than 10,000 cubic meters per second. D) None of these are correct.
The largest ethnic group in Singapore is the Chinese who migrated there because
A. they were willing to take jobs that the indigenous people were not. B. the Japanese used Singapore in WWII as a camp for Chinese prisoners-of-war. C. Singapore sits on the shipping route between China and Europe. D. a Ming Dynasty emperor recognized Singapore's strategic location.
Which of the following activities is most directly related to the dead zones in the Gulf of Mexico just west of the Mississippi River?
A) Extensive shrimp fishing B) Farming in the Midwest C) Burning coal to generate electricity in the Midwest D) Barge traffic on the Mississippi River