Question

how does high elevation affect the temperature? it is warmer at high altitudes because the sun is closer. it is colder at high elevations because the air is thinner. elevation only affects air quality, not temperature.

Explanation:

• The first option is wrong because the distance between the sun and different elevations on Earth is negligible, and the sun's proximity isn't the reason for temperature change with elevation.
• The second option is correct. At higher elevations, the air is thinner (less atmospheric pressure). Thinner air holds less heat, so it's colder.
• The third option is wrong as elevation does affect temperature (due to atmospheric properties) and also impacts other factors like air pressure, which relates to temperature.

Answer:

B. It is colder at high elevations because the air is thinner.