Thursday, September 24, 2009 ;
8:32 AM
What is air pollution?- Air pollution is the air around us that is not clean and it pollutes the air, and it’s not good for us and we will get sick.What are the causes?- Factories waste- Sulphur dioxide- CFCsThe PSI is- 50.The URL to my research is- http://app2.nea.gov.sg/psi.aspx
Labels: Khairul ridzal (1T2


1T2 Blogg :]<33