1. How would you know if a soil was formed by mechanical weathering or by chemical weathering?
2. How is the weather in of rocks helpful to life on earth?
3. Give an example of a landform that was created by erosion.
4. Predict what will happen if you rub a piece of stone with sandpaper. What force is simulated in this activity?
5. In what two ways can people cause erosion?
6. In what two ways can people prevent erosion?
2. How is the weather in of rocks helpful to life on earth?
3. Give an example of a landform that was created by erosion.
4. Predict what will happen if you rub a piece of stone with sandpaper. What force is simulated in this activity?
5. In what two ways can people cause erosion?
6. In what two ways can people prevent erosion?
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Answer:
1.process by which the internal structure of a mineral is altered by the addition or removal of elements.
2.weathering is important for soil formation.
3.cliffs, wave-cut platforms, caves, arches, stacks, stumps, and headlands,
4.The rocks become smoother as rough and jagged edges break off.
5.deforestation, overgrazing, construction and mining as well as faulty methods of farming
Explanation:
2.Weathering breaks down and loosens the surface minerals of rock. Hence, the broken rocks are transported to another place where it decomposes and forms soil. Therefore weathering is important for soil formation.
3.Landforms of coastal erosion include cliffs, wave-cut platforms, caves, arches, stacks, stumps, and headlands, amongst others.
4.Rocks break down into smaller pieces through weathering. Rocks and sediment grinding against each other wear away surfaces. This type of weathering is called abrasion, and it happens as wind and water rush over rocks. The rocks become smoother as rough and jagged edges break off.
5.Human activities as well as natural forces cause denudation of the top soil. The soil nutrients are subsequently washed away by running water or blown away by wind. Human activities like deforestation, overgrazing, construction and mining as well as faulty methods of farming lead to soil erosion.
Mulching.
Planting a cover crop – such as winter rye in vegetable gardens. ...
Placing crushed stone, wood chips, and other similar materials in heavily used areas where vegetation is hard to establish and maintain.