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Science study stack
//(Ch. 10-4 notes)//
| Question | Answer |
|---|---|
| 1. What is the difference between mechanical and chemical weathering? 10-1 | Mechanical weathering weathers physically but chemical weathering does it chemically |
| 2. Describe the weathering processes of each chemical weathering agent. 10-1 | Water- Dissolves limestone Acid- Dissolves most things Air- Oxidates Iron |
| 3. Describe the weathering processes of each mechanical weathering agent. 10-1 | Wind- Weathers away rock Water- Weathers away rocks |
| 4. What is the most important and most common agent of chemical weathering? Why do you think? 10-1 | Water because it affects every other chemical agent and can weather most things |
| 5. What is the difference between weathering, abrasion, erosion, and deposition? 10-1 | Weathering is breaking aparts something Abrasion is a rock weathering another rock Erosion is the moving of matter Deposition is the settlinh of matter |
| 6. What are the two most important factors in determining the rate of weathering? 10-2 | Temperature and Elevation are important to the rate of weathering |
| 7. How do hotter temperatures and wet climates affect the rate of weathering? 10-2 | They affect the rate of weathering because hot, humid climates make rock softer |
| 8. What are the horizons of a soil profile? What letter represents each horizon? What is found in each horizon? 10-3 | There are 5 horizons, Topsoil,bedrock, broken up bedrock, sub soil, and soil O a b c r are horizons O has dead animals and plants A has the must humus and nutrients B doesnt have as much as A C is broken up R rock R is the parent rock and is bedorck |
| 9. What layer of soil would you find the most humus? 10-3 | Topsoil is where you'd find the most humus |
| 10. Which horizon does soil formation begin? 10-3 | Is starts at bedrock |
| 11. List some examples of decomposers and explain why they are important for soil? 10-3 | Bacteria,Fungus,Mold,Lichens and more are decomposers and return nutrients to the soil |
| 12. Which soil horizon layer forms last? 10-3 | The last layer is the topsoil. |
| 13. What is humus? 10-3 | Humus is the remains of dead plants and animals that fill the soil with nutrients |
| 14. What is soil? 10-3 | Soil is broken up rocks. |
| 15. Which horizon is called the parent material? 10-3 | Bedrock is called the parent material |
| 16. What does it mean if soil is fertile? (10-3) | If the soil is fertal it means it has enough nutrients to support life |
| 17. Compare the particle sizes of sand, clay, and silt. 10-3 | Sand has large particles, Clay has very small particles, and silt has very small particles |
| 18. Why is it good to have permeable soil or rocks? | Because it will have more water if it is permable |
| 19. Define soil conservation. 10-4 | Soil conservation is conserving soil and protecting it from erosion |
| 20. What are the 5 soil conservation techniques? Describe how each is used to conserve soil. Basic info. 10-4 | 5 soil cons. tech.are Contour Plowing,Terracing, No-till farming,Cover Crops, And crop rotation. |
| Describe how each is used to conserve soil. Basic info. | Contour Plowing is making farm land in shapes so that it doesn't flood in heavy rain Terracing is turning steep hills into a lot of flat smaller lands. Crop rotation is changing where you crops grow. No-till farming is when you Harv. The stalks stay |
| cover crops are crops that bring nutrients back to the soil. |
Created by:
Ultradarkix
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