Geothermal energy provides a low-cost alternative to fossil fuels only in places where ________.
A) groundwater is found close to the surface
B) high temperatures exist at relatively shallow depths
C) volcanoes are nearby
D) geysers are found

Question

Geothermal energy provides a low-cost alternative to fossil fuels only in places where ________. 
A) groundwater is found close to the surface 
B) high temperatures exist at relatively shallow depths 
C) volcanoes are nearby 
D) geysers are found

Quizplus · Accepted Answer

Geothermal energy is only a low-cost alternative to fossil fuels in areas where high temperatures exist at relatively shallow depths. This is because geothermal power plants use heat from underground to generate electricity, and it's easier and less expensive to extract this heat when it's closer to the surface. Groundwater, volcanoes, and geysers may indicate the presence of geothermal energy, but they are not a guarantee of economical viability.

Geothermal Energy Provides a Low-Cost Alternative to Fossil Fuels Only