Encharta is sitting outside, looking at her beautiful garden. As the sun goes down, the colours become less bright and finally all become shades of grey. This is because:

Question

Quizplus · Accepted Answer

Rods are more sensitive to low light levels and are responsible for vision in dim light conditions, while cones are responsible for color vision in bright light conditions. As the sun goes down, there is less light available, so the rods take over for the cones, resulting in a decrease in color perception and an increase in perception of shades of grey.

Encharta Is Sitting Outside, Looking at Her Beautiful Garden