← 1.1 Controlling Soil Pollution
Household wastewater and the garden
Agriculture · Grade 7 · about 40 minutes
Kitchen, laundry and bathroom water carry grease, soap and salt that pollute garden soil if they are poured on food crops.
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- 9 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
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