Air becomes less dense and rises when
A) the air warms.
B) the water vapor content increases.
C) atmospheric pressure decreases.
D) All of these are correct.
E) None of these are correct.

Question

Quizplus · Accepted Answer

All three options (air warming, water vapor content increasing, and atmospheric pressure decreasing) can cause air to become less dense and rise. When air warms, it expands and becomes less dense, causing it to rise. As the water vapor content of air increases, it becomes more buoyant and rises. When atmospheric pressure decreases, air can expand and become less dense, leading to its upward movement. Therefore, the best answer is D, "All of these are correct."

Air Becomes Less Dense and Rises When