Which row in the table correctly describes the primary process, reactant, and product that power the Sun?
| Process | Reactant | Product | |
|---|---|---|---|
| A | Nuclear fission | Helium | Hydrogen |
| B | Nuclear fusion | Hydrogen | Helium |
| C | Chemical combustion | Hydrogen and Oxygen | Water |
| D | Nuclear fusion | Helium | Carbon |
Row A
Row B
Row C
Row D
104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.