Why is air pollution a problem?
VOCs (Volitle Organic Compounds) pollution divided into air
pollution, water pollution, sound pollution...with refer to all
those pollutions,they all can threat all life form. for example, if
water is polluted, the fish inside the water will drink the dirty
water maybe containing mercury or what, after that fish caught to
become our meal, we will die cox of eating fish pollluted with
mercury,