The evidence that the universe is expanding comes from:

  1. blue shift of nearby stars
  2. the brightness of the Sun
  3. the red shift of distant galaxies
  4. the Moon's phases
Answer

C) the red shift of distant galaxies

Hubble's observations. SLO P-11-D-04 · Understanding

Physics MCQ · More Wave Intensity and the Doppler Effect MCQs · Practise