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Poor farming practices also create large amounts of oxygen consuming wastes. If agricultural waste is improperly stored, it can accumulate and wash into streams, rivers, and lakes. Like human waste, it introduces oxygen consuming bacteria, which will reduce the level of dissolved oxygen.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 Introduction
| Objectives | Pre-Test
| Presentation | Activity
| Post-Test
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