The reason behind ‘the warm air rises up’ is:
A. Warm air is heavier
B. Warm air is lighter and less dense
C. It is the nature of the warm air
D. None of the above
Answer:B
The reason behind ‘the warm air rises up’ is:
A. Warm air is heavier B. Warm air is lighter and less dense C. It is the nature of the warm air D. None of the above