29 Which of these is the best summary of "Geothermal Energy"?
A People around the world use geothermal energy to heat their homes. Heat pumps are energy
efficient, environmentally clean, and becoming more popular as years go by. The United
States leads the world in geothermal electricity generation. California is the national leader in
geothermal electricity. Many California homes use heat pumps.
B Geothermal energy occurs naturally and often comes to the surface of the Earth in volcanoes,
fumaroles, geysers, or hot springs. Many of these are found in western states and Hawaii. Some
geothermal features are located in national parks like Yellowstone, where they are protected.
Some are found in Iceland and the Philippines.
C Geothermal energy comes from heated water or steam. Most of the major geothermal activity
in the world is located around the Ring of Fire, which circles the Pacific Ocean. People who live
in these areas can use heat pumps to get the energy out. This is because soil temperatures are
usually cool in summer and warm in winter.
D Geothermal energy is recovered from water or steam heated by forces beneath the Earth.
Geysers and hot springs are natural sources of this heat energy, which is widely used to generate
electricity in the United States and elsewhere. Heat energy can also be used to power heat
pumps, which are clean and efficient methods of heating and cooling.