Which of the following is true about transport of sediment in a stream?
A) Pebbles and cobbles are mostly transported by suspension.
B) Sediment that is deposited within a stream bed is unlikely to be transported again.
C) Sand can be transported in a series of bounces along the stream bed.
D) Slower current can carry larger clasts because the water is in contact with each clast for a longer time.
E) Sand grains are converted into salt by the process of saltation.
C) Sand can be transported in a series of bounces along the stream bed.
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Evaluate the following statement. "Human activities contributing to global warming could cause the oceans to switch to ice-age mode."
A) This statement is true. B) This statement is false. Changes in human behavior will alleviate any global warming trends. C) This statement is false. Ice ages only begin when Earth is a certain distance from the Sun. D) This statement is partially true. Global warming may cause a change in the oceans, but it is a natural process that is unrelated to human activity.
The Coriolis force is caused by: a. horizontal changes in pressure
b. the earth's rotation. c. gravity. d. All of these choices.
When HCl is dissolved in water which of the following is true of the equilibrium which is established?
A) It lies virtually completely to the left. B) It lies slightly to the left. C) It lies virtually completely to the right. D) It lies slightly to the right.
A weather map symbol of a line with semicircles all on one side of the line depicts a(n):
a. warm front. b. occluded front. c. stationary front. d. cold front.