Which of the following will NOT cause air to become more unstable?
A) intense solar heating which warms the air from below
B) subsidence of an air column
C) forceful lifting of air
D) upward movement caused by general convergence
B
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What percentage of Earth’s water can be found in the oceans?
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.
A roadie pushes a pair of speakers 2 m with a force of 20 N. The work done by the roadie is
A. 2 J. B. 40 J. C. 20 J. D. 10 J.
New seafloor is formed at ____________ ____________. Fill in the blank(s) with the appropriate word(s)