Why are cities in the mountains colder than cities at lower elevations?

As altitude rises, air pressure drops

Explanation:

Thin air exerts less pressure than air at a lower altitude. High-altitude locations are usually much colder than areas closer to sea level. This is due to the low air pressure.

solvent

happy to

pls mark as brainliest

i'd say that the moon rock is about 2.2 billion years old.