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.
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
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.