Oral rehydration therapy
a. is less successful than expected
b. is too expensive to be practical
c. was a factor in saving about 3 million lives in 2008
d. can help prevent death by dehydration of a child with severe diarrhea
e. None of the above
D
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What will be an ideal response?
If all other variables were the same, what differences would you expect between a humid and an arid climate in soil formation?
A) The humid climate would have less mineral dissolution from near-surface horizons and a greater accumulation of clay, oxide, and hydroxide. B) The humid climate would have less mineral dissolution from near-surface horizons and less accumulation of clay, oxide, and hydroxide. C) The humid climate would have more mineral dissolution from near-surface horizons and less accumulation of clay, oxide, and hydroxide. D) The humid climate would have more mineral dissolution from near-surface horizons and a greater accumulation of clay, oxide, and hydroxide.
The Ekman spiral affects the direction of near surface water movement. If you lowered a current-measuring device over the side of a ship in the northern hemisphere, what would you observe?
a) Subsurface water would all be moving to the right of the wind direction. b) Subsurface water would all be moving to the left of the wind direction. c) Subsurface water would be sinking. d) As the instrument descended, the current direction would move progressively to the left of the wind until it actually was going in the opposite direction, and at greater depth it would move to the right. e) As the instrument descended, the current direction would move progressively to the right of the wind until it actually was going in the opposite direction, and at greater depth it would move to the left.
Which way is the current moving along this coastline?
A. in toward the coast B. out to sea C. from right to left D. from left to right