Jawapan Paling Bijak!
Pollution is worldwide problem that affects air, water,and soil .  
   air pollution > - burning of fosil fuels  
                       - vehicle exhausted 
                       - polluted air from factory  
  water pollution > - discharges of toxic  
                          - industrial waste  
                          -  behaviour of human beings  
                         - air pollution can also affect water quality  
soil pollution > - applies particulary to former industrial sites where toxic metals have be deposited....................
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