As the air temperature increases, with no addition of water vapor to the air, the dew point will . a. remain the same b. increase c. decrease d. become equal to the air temperature

Option (A)

Explanation:

A dew point is usually defined as the specific temperature at which the air gets cooled in order to undergo complete saturation with water vapor. This refers to the condition when the relative humidity becomes 100%, and with progressive cooling, it results in the process of condensation, thereby giving rise to the formation of dew.

In a condition, where there is increasing air temperature and no addition of water vapor, the dew point will eventually remain the same. It is because there is not enough water vapor present in the air for the condensation process to take place and form dew.

Thus, the correct answer is option (A).