Move the bonfire to the left side of the sand. Observe how the smoke from the bonfire moves. Record your observations in Table C in the Student Guide.
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Bonfire

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.