If you travel north from the equator, what generally happens to the intensity of ultraviolet (uv) light? a) the intensity increases. b) the intensity decreases. c) the intensity stays the same. d) it is impossible to predict.

B) The intensity decreases

Explanation:

What happens is a variation in the incidence angle, in the equator is 90° of light incidence while you travel away from the equator this angle increases, what means that:

1. A beam light affects most area to the north of the equator than in the equator, so in the equator is more UV light in less area.

2. Atmosphere and light ray length: while you travel away from the equator there is a mayor incidence angle what means the light ray has to travel more distance to get over you and also, while most angle has the light ray there is more atmosphere for the light to past through and there, in the atmosphere, stays some of UV light.

For those reasons while further you are from the equator less UV light you get.