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 provides a low-cost alternative to fossil fuels only in places where high temperatures exist at relatively shallow depths. In these areas, water can be pumped underground to be heated by the hot rocks and then brought back up to the surface as steam to power turbines and generate electricity. The presence of groundwater, volcanoes, or geysers do not necessarily indicate the availability of geothermal energy resources.

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