When a -3.72^ * 10^ ^ -4 C charge moves from point A to point B, its electric potential energy increases by 0.218 J. What is the potential difference between A and B? Include the correct sign 7,+or. .

d. air pressure decreases as altitude increases.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.