May/June 2026 Paper 23

2026 · 40 questions · 40 parts · 40 marks

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40Stars Stellar EvolutionEasy1 mark
A stable star, such as the Sun, is powered by nuclear reactions. Which type of nuclear reaction takes place and which element undergoes this reaction in the Sun?
type of nuclear reactionelement
Afissionhydrogen
Bfissionuranium
Cfusionhydrogen
Dfusionuranium