Question

Why sunsets are red.

a. Longer wavelengths dominate at sunset.
b. Shorter wavelengths are selectively scattered.
c. The atmosphere absorbs longer wavelengths.
d. Scattering is more pronounced in the evening.

Answer 1

Sunsets appear red because of the scattering of light in the Earth's atmosphere. Shorter wavelengths like blue and green scatter more easily, leaving behind longer wavelengths like red and orange.

Step-by-step explanation:

The reason why sunsets appear red is because of the scattering of light in the Earth's atmosphere. As the Sun sets, its light has to travel through a larger portion of the atmosphere, resulting in more scattering. Shorter wavelengths, such as blue and green, scatter more easily, leaving behind longer wavelengths, such as red and orange, to reach our eyes.