What happens to molecules in air as altitude increases in the troposphere? A. they stay at the same temperature. B. they become denser. C. they get closer to each other. D. they move farther apart from each other.

Answer 1

As altitude increases in the troposphere, the correct answer is D. they move farther apart from each other.

As the altitude increases, the air pressure decreases, which causes the molecules in the air to spread out and move farther apart. This results in lower air density at higher altitudes. Additionally, although temperature can vary with altitude, typically the temperature in the troposphere decreases as altitude increases, which further influences the behavior of air molecules.