What percentage of the groundwater in the total volume of freshwater?
A. 84.9%
B. 14.6%
C. 0.55%
D. 0.004%
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Why are particles of similar size usually found together deposited by streams?
A. Particles of smaller size usually get deposited in the faster-moving parts of the stream, but the larger particles can be deposited in the slower parts.
B. Particles drop in order according to weight and settling velocity as a stream’s velocity drops, starting with the largest and ending with the smallest.
C. Particles drop in order according to size and shape as a stream’s velocity increases, starting with the smallest and ending with the largest.
D. Particles of larger size usually get deposited in the slower-moving parts of the stream, but the smaller particles can be deposited in faster-moving water.
Since Earth's water cycle is balanced, the average annual precipitation worldwide must equal the quantity of water infiltrated.
Any change in base level will cause a corresponding readjustment of stream activities.
Building a dam will lower the base level of a stream upstream from the dam.
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