Answer:
Pollutants.
Explanation:
Pollutants is defined as that substances which are released into the environment that in excess amounts cause damage.
Pollutants van be air pollutants , water pollutants , soil pollutants ,noise pollutants ,
Air pollutants can be gases, smoke from burning of fossil fuels and vehicle etc.
Noise pollutants : Noise of crackers,loud music etc.
Soil pollutants :Polythene,plastic bags,fertilizers etc.
Water pollutants : Chemical put into river ,industrial waste put into canals or rivers etc.
All pollutants damage environment when they are released in excess amount into environment .
