Why is methane hydrate not harvested for energy use?
A) It is costly to mine and liquefy the sediments.
B) It is dangerous to mine due to methane's combustibility.
C) The methane disappears as it is brought to the surface.
D) All of these choices.
D
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The Coriolis effect is important only for motions that:
A) do not involve a pressure gradient. B) cover long distances. C) are near the earth's surface. D) cover short distances. E) are slow.
________ is the shift to a tighter packing of sediment grains due to the weight of overburden.
A. Deposition B. Preservation C. Cementation D. Recrystallization E. Compaction
When lava flows reach the ocean, they
A) solidify and add land to an island. B) explode and produce layers of ash. C) form tubes and continue flowing down to the deepest seafloor.
The residents of complex cities tend to sort themselves into groups based on social status, family status and job status.
Answer the following statement true (T) or false (F)