Incense stick - PBQ — task. Chemistry CBSE Live product, Class 7 (2026-27).

Pick out the correct answer for the given questions by observing the given image:

1. A burning incense stick is fixed in a downward-pointing position. In which direction would its smoke mainly move?

2. Which statement gives the most complete scientific explanation for the situation?

The burning incense heats the surrounding air; the warm air rises and carries the smoke upward
The smoke moves in the same direction as the incense stick
The downward-pointing stick forces the smoke to move upward
The smoke rises because smoke always moves upward regardless of conditions

Did you find an error?

9. Incense stick - PBQ