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प्रश्न
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
उत्तर
geothermal energy
Geothermal energy is the heat energy from the hot rocks present inside the earth and does not come directly or indirectly from the sun's energy
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