How does sedimentary rock form?

How does igneous rock form?

How does metamorphic form?

What is Crop rotations?

When soil has lots of humus (decayed organic matter), how does that affect the fertility of the soil?

Which horizon is the darkest in color and is called topsoil?

What human practices can exposes soil to wind and wate?

Horizon C is what layer?

What is crop rotation?

Windbreaks are what?

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