1.Which element acts as a catalyst in the CNO cycle?, A. Hydrogen, B. Helium, C. Carbon, D. Oxygen, 2.This process involves repeated proton capture and beta-plus decay., A. The Triple-Alpha Process, B. The Proton-Proton Chain, C. The CNO Cycle, D. The R-Process, 3.What particle is emitted together with a neutrino during beta-plus decay?, A. Electron, B. Proton, C. Positron, D. Neutron, 4.In which type of star does the CNO cycle dominate?, A. Low-mass stars, B. Cooler stars, C. Massive stars, D. White dwarfs, 5.What is the final stable nucleus produced in the CNO cycle?, A. Carbon-12, B. Nitrogen-15, C. Oxygen-16, D. Helium-4.

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