Question

Why does the sky change colors at sunset?

The atmosphere reflects colors.
The atmosphere bends light.
The sun changes colors.

Answer 1

The atmosphere bends light.

Step-by-step explanation:

I got the test, and passed! =)

Answer 2

The sky changes colors at sunset because the atmosphere ABSORBS some colors of light more than other colors.

The second choice ("The atmosphere bends light") is a correct statement, but it's not the reason that the sky changes colors at sunset.