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|Highscores (30 registered players)|
|1||sven-the-man2||100%||0:10.3 min.||19 May, '15|
|2||2s.kdemiraj||100%||0:13.9 min.||14 Feb, '17|
|3||Georg10||100%||0:13.9 min.||22 May, '15|
|4||itsasbeltza||100%||0:13.9 min.||11 Jun, '13|
|5||joc3942||100%||0:14.0 min.||6 May, '15|
|6||ollipo||100%||0:14.7 min.||26 Apr, '15|
|7||zoel||100%||0:15.0 min.||21 Jan, '12|
|8||makropulos||100%||0:15.2 min.||30 Nov, '12|
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This is an online quiz called Toxic Pollution in modern history
There is a printable worksheet available for download here so you can take the quiz with pen and paper.
First dot is the name of the chemical. Second dot is amount produced. Third dot is period it was used to it was banned (some just partial). There is no missing dots, just missing data.. ref: http://www.theglobaleducationproject.org/earth/toxics.php