What is the lowest level that sediment from a mountain can be transported to?
A) the bottom of a stream channel
B) sea level
C) the bottom of the sea
D) Earth's core
C
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Which of the following climates would have the least likelihood of thunderstorms?
a. marine west coast b. humid subtropical c. humid continental, hot summer d. tropical rainforest
In 1959, the water stored behind Hegben Lake Dam in Montana began to slosh violently back and forth in a series of oscillating waves. These seiches were caused by ________.
A. a freight train plunging off a track and into the lake B. the collapse of the dam C. a large landslide into the lake D. a small meteor crashing into the lake E. a sudden drop of the lake bottom during an earthquake
Relatively cooler magma in an erupting volcano is apparently the result of _______.
a - the amount of water present b - depth of magma formation c - the relatively high amount of silica present d - position of astronomical bodies e - surface salinity
In deserts of southwestern North America developers often build houses in dry stream beds and build only minimal subsurface drainage systems to handle a flow of water comparable to the size of the dry stream channel
Is this a reasonable development model in the interest of public safety? A) Yes, any potential flooding catastrophe would be a 100 year flood event and would have adequate warning to evacuate people for safety, so the drainage system is adequate. B) No, giant rock avalanches could come down the valley covering houses. C) No, flash floods can produce high viscosity mudflows that would not be captured by the drainage system and could flow out over the valley, destroying everything in its path. D) Yes, although flash floods can occur, using the channel size is a reasonable estimate of the maximum flood size.