Weathering, erosion, deposition

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What is chemical weathering?

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Chemical weathering is the process where rocks break down due to chemical reactions, often involving water and substances like acids. An example is acid rain reacting with minerals in rocks.

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What is mechanical weathering?

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Mechanical weathering is the physical breakdown of rocks into smaller pieces without changing their chemical composition. An example is rock particles wearing away other rocks.

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What is physical weathering?

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Physical weathering, also known as mechanical weathering, occurs when physical forces, such as animals burrowing, displace soil, rocks, and plant roots.

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What are the main forces that cause erosion?

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The main forces that cause erosion include wind, ice, and gravity.

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What is deposition?

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Deposition is the process where materials, such as sand, are dropped off in a new location, like beach waves depositing sand to create a beach.

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How does acid rain contribute to weathering?

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Acid rain, formed when fossil fuels react with water, can wear away minerals in rocks, leading to chemical weathering.

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What role does wind play in erosion?

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Wind can carry away loose particles of soil and sand, contributing to erosion, especially in dry areas.

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What is the difference between weathering and erosion?

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Weathering is the breakdown of rocks, while erosion is the movement of those broken materials from one place to another.

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What is an example of biological weathering?

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An example of biological weathering is tree roots growing into cracks in rocks and breaking them apart.

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What is the impact of gravity on erosion?

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Gravity causes materials to move downhill, leading to erosion, especially in landslides and rockfalls.