How has the use of hydraulic fracturing, or fracking, led to a boom in oil and gas production in the United States?
A. It allows us to obtain these resources in half the time as traditional drilling methods.
B. It allows us to get around environmental rules that often interfere with drilling.
C. It allows us to exploit oil and gas trapped in low-permeability rocks.
D. It allows us to drill under mountains to obtain deposits difficult to reach.
Answer: C
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Boulders include all rounded particles coarser than 2 mm in diameter.
Answer the following statement true (T) or false (F)
Which of the following is the only viable explanation for the documented and observable recent climate changes, including the increased average temperature of Earth's surface?
A) Changes in the Sun's brightness B) Major volcanic eruptions C) Release of human-caused emissions D) Reversed magnetic polarity E) Variations in Earth's orbit
Wind deposited silts are called ______
a) laterite b) lahar c) loam d) loess e) gelisols
While sitting outside at a picnic, you and your family start discussing how hot it is outside and plan to take a dip in the lake to cool off. What type of heat have you experienced in order to make this statement?
A) kinetic heat B) sensible heat C) latent heat D) potential heat