Suppose a pilot balloon rises at a rate of 100 metres per minute and disappears into a deck of stratus clouds 1500 metres thick in 5 minutes. Which of the following gives the ceiling of the cloud layer?
A. 1500 m
B. 100 m
C. 500 m
D. 300 m
Answer: C
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An object is pulled northward with a force of 10 N and southward with a force of 15 N. The magnitude of the net force on the object is
A) 0 N. B) 5 N. C) 10 N. D) 15 N. E) none of the above
The primary professional organization for professional meteorologists in the United States is the ________
Fill in the blank(s) with the appropriate word(s).
Relative humidity
A) is independent of saturation vapor pressure. B) is independent of vapor pressure. C) is 100 percent for saturated air. D) changes at the same rate as the mixing ratio does. E) is of little significance for meteorologists.
________ deposits such as gold and silver are generated from hot, ion-rich fluids
A) Kimberlite B) Hydrothermal C) Placer D) Evaporite