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5 Cards in this Set
- Front
- Back
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How is soil made?
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Rock weathering-(rain,wind,ice)
Weathers away at rocks, mixes with nutrients, to make rock particles. |
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How long does it take to make soil?
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200-400 years
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Why is soil important?
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Its important because it provides life to plants which creates oxygen, homes for animals, stores water, and gets nuitrients.
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What are the layers of the ground?
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Humus (decayed plants and animals
-------------------------------- Topsoil (dark) -plant roots -animals -------------------------------- Subsoil -oxygen -plant roots -water -------------------------------- Bedrock (paret rock) -plant roots -water |
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How is soil being distoyed?
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Agriculture-
-takes out nuitrents by digging -goats (eating everything) Defornatation- -using firewood -cutting down trees |
