Colors are barely seen or not at all in nighttime because moonlight
A)has almost no colors in it.
B)is too dim to activate the retina's cones.
C)photons don't have enough energy to activate the retina's cones.
D)is primarily yellow light.
E)is only semi-transparent in Earth's atmosphere.

Question

Quizplus · Accepted Answer

The retina's cones are responsible for color vision and require a certain level of light intensity to activate. In low light conditions, such as at night, there is not enough light for the cones to activate and colors are perceived as shades of gray. Moonlight is relatively dim compared to sunlight, so it is not able to activate the cones in the retina and therefore colors are barely seen or not at all.

Colors Are Barely Seen or Not at All in Nighttime