Each molecule of hemoglobin can carry up to ________ oxygen molecules.
A. 1
B. 2
C. 3
D. 4
Answer: D
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Computer-based weather forecasts
A) are completely automated and require no intervention by human forecasters. B) are mostly unreliable and are little-used by human forecasters. C) provide important guidance to human forecasters. D) are only used in specific, hurricane-prone areas.
The polar easterlies
A) occur at approximately 75-80 degrees north latitude. B) are little affected by the Coriolis force. C) dissipate substantially in winter. D) are strongest over continents. E) help feed the trade winds.
You are an avid skier. What factors should you be sensitive to when skiing to avoid avalanche hazards?
What will be an ideal response?
Statistically, the 100-year flood has a ________ percent chance of occurring any year.
A. 50 B. 63 C. 10 D. 1 E. 2