: Students are often asked to list what soil contains. Correct answers typically include air, water, humus (organic matter), sand, clay, and mineral salts . Living vs. Non-living Nature : Living : Plants, animals, fungi, bacteria, and humans. Non-living : Sun, air, water, stones, and soil.
: Properties of water (three states), the water cycle, and the importance of air for living organisms. : Students are often asked to list what soil contains
For page-by-page visual solutions, you can consult verified educational platforms: humus (organic matter)