A room is heated by a heater on a wall. Which statement describes what happens to the heated air just above the heater?
A.
The heated air becomes denser and falls.
B.
The heated air becomes denser and rises.
C.
The heated air becomes less dense and falls.
D.
The heated air becomes less dense and rises.
Exam No：0653_w24_qp_22 Year：2024 Question No：33
Answer:
D
Knowledge points:
P2 Thermal physics
Solution:
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