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|Highscores (56 registered players)|
|1||sven-the-man2||100%||0:06.4 min.||1 Oct, '12|
|2||Jonas||100%||0:06.5 min.||29 Oct, '12|
|3||heateh||100%||0:07.6 min.||29 Jun, '12|
|4||András||100%||0:07.9 min.||22 Nov, '19|
|5||bigpapiiz12||100%||0:08.0 min.||19 Jan, '16|
|6||apokar||100%||0:08.1 min.||5 Jul, '12|
|7||RaVeNdAd||100%||0:08.3 min.||14 Oct, '12|
|8||joc3942||100%||0:08.3 min.||27 Oct, '12|
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This is an online quiz called Dead Zones
There is a printable worksheet available for download here so you can take the quiz with pen and paper.
Click on some aquatic areas in the world referred to as 'dead zones' because of their low levels of oxygen and, consequently, marine life.
Often due to fertilizers and chemicals being carried down rivers.
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