Which statement about the Sun is correct?
The Sun is a giant star that consists mostly of hydrogen and oxygen.
The Sun is a medium-sized star that generates energy via the nuclear fusion of hydrogen.
The Sun is a dwarf star that generates energy via the nuclear fission of helium.
The Sun is a medium-sized star that consists mostly of solid iron and nickel.
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.