False salt is good for atleast 5 years
Answer:
syphilis
Explanation:
it is a bacterial disease that comes in stages
Answer:
The 3rd Option
Explanation:
Simple for this question, C: an investigation because it uses only observations.
Loud noise can damage cells and membranes in the cochlea. Listening to loud noise for a long time can overwork hair cells in the ear, which can cause these cells to die. The hearing loss progresses as long as the exposure continues. Harmful effects might continue even after noise exposure has stopped.
