Weathering, Erosion, Deposition and Phases of Matter-5th

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What is weathering?

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Weathering is the process of breaking down rocks and minerals into smaller pieces by natural forces such as wind, water, and temperature changes.

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What is erosion?

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Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind, water, or ice.

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What is deposition?

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Deposition is the process where sediments, soil, and rocks are added to a landform or land mass, often occurring after erosion.

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What is chemical weathering?

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Chemical weathering involves the chemical alteration of minerals in rocks, such as iron rusting due to exposure to oxygen and moisture.

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What is physical weathering?

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Physical weathering is the mechanical breakdown of rocks into smaller pieces without changing their chemical composition, such as tree roots breaking rocks apart.

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What are the main causes of erosion?

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The main causes of erosion include water (rain and rivers), wind, ice (glaciers), and human activities like deforestation and construction.

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How can vegetation help prevent erosion?

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Vegetation helps prevent erosion by stabilizing the soil with roots, reducing the impact of raindrops, and slowing down water runoff.

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What is the role of gravity in erosion?

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Gravity plays a significant role in erosion by pulling soil and rocks downhill, leading to processes like landslides and sediment movement.

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What is sedimentation?

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Sedimentation is the process of settling or being deposited as sediment, often occurring in bodies of water where particles accumulate.

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What is the Grand Canyon an example of?

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The Grand Canyon is an example of erosion, specifically by the Colorado River over millions of years.