Which of the following are capable of producing a red sunrise or sunset?
A) small suspended salt particles
B) volcanic ash
C) small suspended dust particles
D) all of the above

Question

Quizplus · Accepted Answer

All of the options listed are capable of producing a red sunrise or sunset. When the sun is low on the horizon, its light must pass through more of the Earth's atmosphere before reaching our eyes. This causes the shorter, blue wavelengths to scatter more, leaving the longer, red wavelengths to color the sky. Small suspended salt particles, volcanic ash, and small suspended dust particles can all be present in the Earth's atmosphere and contribute to this effect.

Which of the Following Are Capable of Producing a Red