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Cambridge IGCSE. 2025. Physics (0625). May/June - Paper 2 (22) · Multiple Choice (Extended) - Question 39

Cambridge IGCSE · Paper 2 (22) · Multiple Choice (Extended)

Question 39

Stars are powered by nuclear reactions that release energy.

Which statement describes the nuclear reaction in stable stars?
  1. Nuclear fission converts helium into hydrogen.
  2. Nuclear fission converts hydrogen into helium.
  3. Nuclear fusion converts helium into hydrogen.
  4. Nuclear fusion converts hydrogen into helium.
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