The brain receives messages in signals called nerve impulses. Which part of the ear first generates these nerve impulses? auditory nerve
cochlea
hammer
ear canal

A1 a 2 a 3 ooh lol i think that's it

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.