Answer:

1. Mostly transportation vehicles, machines, loud noises and etc.
2. Increase in stress, loss of concentration, also maybe loss of hearing, lack of sleep and productive time loss.

Answer:

1.from household, social events, commercial and industrial activities and transportation

2. In human It can cause of headache,stress,depression annoyance and deafness. In animals it can cause

increase of death losses the control of its mind,become dangerous and attacking and damage the nervous system.

HOPE IT HELPS