What is the relationship between temperature and air pressure?

The relationship between temperature and air pressure is fundamentally linked to the behavior of air molecules. When the temperature increases, air molecules gain energy and move more rapidly. This increased kinetic energy causes the molecules to spread out and occupy a larger volume, reducing the density of the air. As a result, when the temperature rises, the air pressure generally decreases due to this expansion.

Conversely, when the temperature decreases, the air molecules lose energy, move more slowly, and tend to be closer together. This increase in density results in higher air pressure. Therefore, the correct answer reflects the inverse relationship where higher temperatures typically lead to lower air pressure due to the behavior of gas molecules, consistent with the principles of gas laws in physics.

Other options suggest static behavior or direct correlations between temperature and air pressure that do not align with the established scientific understanding of gas behavior.