1.

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

Answer»

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



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