Hearing is controlled by

Sensation of hearing is produced as a result of the

The part of the brain which controls vision, touch, hearing, motion and memory is

_________ is a hearing aid used by people, who have difficulty in hearing.

Hearing loss is measured in terms of

Sensation of hearing is a result of

Assertion : hearing aids help the hearing impaired to hear. Reason : They make sound travel through skull bones.

What is hearing aid? How does hearing aid work?