Which statement about the nuclear fusion that powers the Sun is correct?
It occurs in the corona and fuses helium into oxygen.
It occurs in the core and fuses hydrogen into helium.
It occurs in the photosphere and fuses hydrogen into helium.
It occurs in the core and fuses helium into carbon.
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.