1. In Fig. 8.6, there are two holes A and B. made as paths in the rectangular box X. A candle C is burning inside this box.
(1) How do the convection currents flow inside the box? Show them by drawing arrows
(2) If hole B is blocked, what will happen? (3) If we put a fragrant stick on A, in which direction will the smoke flow?
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sorry I don't know how to solve it
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if hole Bis blocked,what will happen?
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