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.
PowerPoint with Audio. Part of the Living on Planet Earth series. This presentation includes colorful images and illustrations that describe how plants make their own food through the process of photosynthesis. It also provides basic concepts as to how plants and animals breathe and obtain nutrition.