Solution:A hearing aid which is provided to the person who suffers from hearing loss amplifies the sound sent from the surroundings.
A hearing aid amplifies the sound sent from the surroundings. Hearing loss, known as hearing impairment, means a person has damaged hearing ability and cannot hear clearly. Partial hearing loss is generally due to ear infection, injury or old age. A person with partial hearing loss can hear sounds clearly using a ‘hearing aid’. Usually, the loss of hearing occurs due to noise pollution.