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Explain the environmental effects of chemical reactions?
  
Type of pollutions:
Chemical substances responsible for the pollution:
Carbon dioxide, Carbon monoxide, oxides of sulphur, oxides of nitrogen, Chlorofluorocarbons, methane, etc.
Effects: , respiratory problems, etc.
  
Type of pollutions:
Chemical substances responsible for the pollution:
Waste water containing chemical substances (e.g dyeing industries), detergents, oil spillage, etc.
Effects: , skin diseases, etc.
  
Type of pollutions:
Chemical substances responsible for the pollution:
Fertilizers like urea, various pesticides, herbicides, etc.
Effects: , respiratory diseases, etc.