Hydraulic fracturing breaks what kind of rock layer to release methane?
A. Slate
B. Limestone
C. Shale
D. Granite
Answer: C
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The quickest and easiest way to save money on energy bills is to
A. Modify your energy-using behavior B. Put new insulation in your home C. Install a new furnace D. Buy a more efficient automobile E. Install a new water heater
Assembly plants located in Mexico City are known as maquiladoras
Indicate whether the statement is true or false
In addition to being hunted for and sold as pets, what is the main reason desert tortoise populations are in decline?
A) Habitat destruction and fragmentation B) Global warming C) Tortoise Shells being sold as souvenirs D) Tortoise meat is a delicacy in Tex-Mex cuisine
Globally, what is the main reason that life expectancy has increased dramatically over the last five decades?
A) more food to feed more people but distribution is poor so people still go hungry B) better family planning efforts in developed countries C) improved health care, nutrition, and sanitation D) improved clean water supplies E) migration to cities