Which of the following accurately describes the process of hearing?
1) When fluid moves out of the ear, it causes the auditory ossicles to stop moving, which triggers nerve impulses that the brain interprets as sound.
2) When fluid moves out of the ear, it causes the hairs in the ear to move, which triggers nerve impulses that the brain interprets as sound.
3) Sound waves create mechanical motions that cause fluid in the ear to move in waves and trigger nerve impulses that the brain interprets as sound.
4) Sound waves travel through the ear in air, triggering nerve impulses that the brain interprets as sound.