Extremely high temperatures are required to initiate nuclear fusion, but once initiated, energy is then released by nuclear fusion.This is analogous to

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Quizplus · Accepted Answer

Lighting a match to start a fire is analogous to initiating nuclear fusion because both processes require an initial input of energy to start, but once begun, they continue to release energy. In the case of nuclear fusion, extremely high temperatures are needed to start the reaction, similar to how striking a match provides the initial energy to ignite a fire.

Extremely High Temperatures Are Required to Initiate Nuclear Fusion, but Once