Answer:
Answer: Option C) Warm air is less dense than cold air
Explanation:
Due to greater temperature of warm air than cold air, the space between intermediate molecules is more as compared to cold air. It means the warm air expands. Hence, the density of warm air is less than cold air. On the other hand, the cold air comparatively denser and sinks. Warm air is lighter and rises.
Thus, correct option is C) Warm air is less dense than cold air
