Longshore currents are a result of ____
a. swash and backwash
b. the tides
c. a rise in sea level
d. incomplete wave refraction
d
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The most important source of carbon monoxide emissions in the United States is
A) natural emissions. B) automobile engines. C) coal-fired energy plants. D) industrial processes.
In the movie The Poseidon Adventure, a cruise ship is overturned by a tsunami while at sea. This plot is not valid because
A) tsunamis do not have the energy to overturn a ship of that size. B) tsunamis do not occur in the open ocean. C) tsunamis do not form high waves while in the open ocean. D) the tsunami in the movie didn't occur in a tectonically active area.
Large grains too heavy to be carried by wind move by surface creep
Indicate whether the statement is true or false
A ________ stream has an interwoven network of small channels separated by much loose debris
A) meandering B) competent C) high-capacity D) thalweg-less E) braided