Why is the sky orange and red at sunrise and sunset? Gases absorb orange and red light.
Blue wavelengths are absorbed by the atmosphere.
The thick atmosphere scatters all but longer wavelengths.
Only short wavelengths are radiated from the Sun in the morning and evening.

Which type of market produces the highest level of output at the lowest price to consumers?

This is the mountain range known as the alps. which of these statements regarding the alps is true? a) the alps are the largest mountain range in asia. b) the alps protect the roman empire from invasion. c) the alps were key in preventing england from being conquered in warfare. d) the alps prevented the roman empire from taking control of most of europe.

Which of the following is a problem in the health care system of the united states? a. too many doctors in rural areas b. too many doctors who are general practitioners c. fraud d. costs that are too low