Geothermal energy is produced by the:
(a) fission of radioactive materials
(b) burning of coal inside the coal mines
(c) combustion of natural gas deep inside the earth
(d) fusion of radioactive substances
(a) fission of radioactive materials
Explanation
Geothermal energy is the heat energy obtained from hot rocks present inside the earth due to the fission of radioactive materials in it.
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