Answers

2014-08-04T21:54:51+08:00
*Impact. :)) Environmental problems concerning the air that surrounds us may affect our respiratory systems, as some chemicals are harmful for it. Pollution, in some places, can bring diseases due to unsanitary practices and intake of unclean water. Extreme weather, if too cold, can weaken our immune systems (due to the white blood cells' inability to move fast, and ther factors), or if too hot, trigger strokes. 
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