How are oil and gas extracted in the hydraulic fracturing process?
A)Injection of high-pressure fracking fluids increases the permeability of the rock and allows oil and gas to move into the well.
B)Injection of high-pressure fracking fluids forces low-pressure oil and gas to the surface.
C)Horizontal wells are drilled, and the oil and gas is pumped out.
D)Injection of low-pressure fracking fluids enlarges pore spaces allowing the oil and gas to be pumped out.
E)Injections of fracking fluid are used to generate small earthquakes, which shake oil and gas to the surface.
Question 2
Many of the volcanoes in mainland Alaska and the Aleutian Islands ____.
A)are in the Cascade Range
B)were formed over hot spots
C)were formed over divergent plate boundaries
D)have formed within the last 1000 years
E)are composite volcanoes
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