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.
