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Soil 作者: Mind Map: Soil

1. Soil is made out of minerals.

1.1. Water

1.2. Air

1.3. Organic Matter

1.4. Many things that decayed into the ground that was once living animals/insects.

2. Soil has 5 layers.

3. How To Describe Soil

3.1. Texture

3.2. Consistence

3.3. Color

4. Is Made of...

4.1. Weathered Rocks

4.1.1. Sand, Clay, Silt, and Rocks.

5. Types:

5.1. Desert Soil

5.2. Forest Soils

5.3. Tropical Grassland Soils

6. Nutrients That Fertilize The Plants:

6.1. Organic Matter

7. How Do Living Things Help Soil Become Healthy?

7.1. Insects

7.1.1. They help fertilize the soil.

7.2. Small Animals

7.2.1. They also help fertilize the soil. They give nutrients to the soil as well.