Which one of these do you think has the most negative impact on the earth?
x
Reference
How Do Humans Affect the Environment?, love to know, retrieved 24th October 2015,
http://greenliving.lovetoknow.com/How_Do_Humans_Affect_the_Environment
Surveyers: Family and Friends
http://greenliving.lovetoknow.com/How_Do_Humans_Affect_the_Environment
Surveyers: Family and Friends