April Quiz Answers

OK, so here are the answers to this month’s quiz questions. All should be able to be easily verified online.

April Quiz Questions: Physical Science

  1. How much water is there on Earth per human being? Roughly 175 trillion litres ± 15%
  2. What was the name of the first, Russian, man-made satellite? Sputnik I
  3. How many internal reflections of light take place in the formation of a primary rainbow? Two
  4. Roughly how long does it take for the sun’s light to reach Earth? Eight minutes
  5. Which Russian chemist published the first widely recognised Periodic Table? Dmitri Mendeleev

Answers were correct when questions were compiled in late 2021.