study guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | chemical weathering is the process by which rocks break down as a result of chemical reactions. mechanical weathering is the breaking down of rock into smaller pieces by physical mean
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| 2. Describe the weathering processes of each chemical weathering agent? | show 🗑
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| 3. Describe the weathering processes of each mechanical weathering agent? | show 🗑
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| show | i think water is the most important and most common agent because it is quick and a lot of chemical weathering is caused by water.
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| show | weathering is the process by which rock materials are broken down by the action of physical or chemical processes.Abrasion is the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles.
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| 6. What are the two most important factors in determining the rate of weathering? | show 🗑
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| show | In hot and wet climates oxidation happens at a faster rate which cause rust.
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| 8. What are the horizons of a soil profile? What letter represents each horizon? What is found in each horizon? | show 🗑
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| show | topsoil (horizon A)
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| show | horizon B (subsoil)
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| 11. List some examples of decomposers and explain why they are important for soil? | show 🗑
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| show | horizon O
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| 13. What is humus? | show 🗑
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| 14. What is soil? | show 🗑
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| 15. Which horizon is called the parent material? | show 🗑
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| show | a soil's ability to hold nutrients and to supply nutrients to a plant.
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| show | Sand is less than 2 mm but more than 0.05 mm.
Silt is less than 0.05 mm but more than 0.002 mm.Clay is less than 0.002 mm.
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| 18. Why is it good to have permeable soil or rocks? | show 🗑
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| show | maintaining the fertility of soil by preventing erosion and nutrient loss is called soil conservation.
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| 20. What are the 5 soil conservation techniques? Describe how each is used to conserve soil. Basic info. | show 🗑
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| 20. What are the 5 soil conservation techniques? Describe how each is used to conserve soil. Basic info. | show 🗑
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| show | Plant roots get so strong they actually make cracks in rocks widen and the rock eventually breaks.Animal burrow through the soil and move soil particles around.This exposes fresh surfaces to continued weathering.
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| show | acids in living things: Lichens produce acids that can slowly break down rocks.
Air: oxidation is a chemical reaction in which an element, such as iron, combines with oxygen to form an oxide.
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| show | erosion is the process by which rock material is worn down and carried away. Deposition is the resting spot that the material landed.
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| 8. What are the horizons of a soil profile? What letter represents each horizon? What is found in each horizon? | show 🗑
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Created by:
tmoon128