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.
D) None of these are correct.
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Which nation in the region has a deep split between Sunni and Shiite sects of Islam?
A) Turkey
B) Iraq
C) Egypt
D) Morocco
E) Iran
Which of the following occurs in the loop of Henle?
A) Blood pressure pushes fluid out of the capillaries. B) Wastes are transported from the blood into the filtrate. C) Molecules the body wants to keep are transported into the blood. D) Water reabsorption occurs.
What manufacturing region in North America produces electronics and processed foods, and is often called "Silicon Valley"?
A) Gulf Coast, from southeastern Texas to Alabama B) Los Angeles and San Diego C) San Francisco Bay D) Southeastern, from Virginia through Alabama E) Pacific Northwest
If you live in the Midwestern United States or Canada and you experience several days of winter temperatures below -20°C with clear weather, you are undoubtedly experiencing ________
A) a Maritime Polar air mass B) a Continental Tropical air mass C) a cyclonic storm D) a Continental Polar air mass