4.4 Water Pollution - Introduction

IB Environmental Systems & Societies: 4.4 Water Pollution - Introduction

By the time I come to teach this topic, my students already know about biological oxygen demand, sampling water, indicator species and eutrophication but this depends on the order of the units that you teach and, in my case, the strength of the blogging that the students do as eutrophication is a common topic to come up.This unit strongly overlaps with Sub-topic 2.5.In order to save some time, I will rely on the learning...

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