The case caused by the action of humans, such as industrial pollution from the manufacturing process from agricultural activity from some types of gas evaporation caused by waste and scrap, etc.
Cases caused by human activities such as pollution from industrial production. From agricultural activities by evaporation of some kind of gas. Caused by rubbish and waste, etc..
The case caused by human activities such as industrial pollution from the process. From agricultural activities from the evaporation of gas of some kind. , which caused the garbage and waste, etc.