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  PowerPoint: Presentation with Audio: Soil 1: Composting (multi-age)
PowerPoint: Presentation with Audio: Soil 1: Composting (multi-age) - preview 1
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PowerPoint with Audio: Composting Creates Soil. Part 1 of 4 soil presentation in the Living on Planet Earth Series. This program describes how soil is made. By recycling plant materials we help produce vibrant soils that offer nurturing food, and dependable clothing fiber and building materials.
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