UPPCS · প্রশ্ন 4
Most of the sources of energy we use represent stored solar energy. Which of the following is NOT ultimately derived from the sun's energy?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (A) Nuclear energy
ব্যাখ্যা
Nuclear energy comes from fission of uranium/thorium atoms, not from the sun. (Geothermal also is not solar-derived, but the key accepts nuclear.) (As per the official UPPSC answer key.)