Question

With the passage of a warm front, the air temperature usually rises and the dewpoint usually ________.

(a) Increases
(b) Decreases

Answer 1

With the passage of a warm front, the air temperature usually rises and the dewpoint usually increases. Therefore, the correct option is (a) Increases

Step-by-step explanation:

With the passage of a warm front, the air temperature usually rises and the dewpoint usually increases.

When a warm front moves in, warm air is replacing cooler air. As the warm air mass advances and replaces the cooler air, the dewpoint of the atmosphere also increases. This happens because warmer air can hold more moisture than cooler air. Therefore, as the warm front passes through an area, the dewpoint rises.