Weathering

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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 ice.

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What are the two main types of weathering?

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The two main types of weathering are mechanical (physical) weathering and chemical weathering.

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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.

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What is chemical weathering?

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Chemical weathering involves the chemical alteration of minerals in rocks, often leading to the formation of new minerals.

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What is biological weathering?

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Biological weathering occurs when living organisms, such as plants and animals, contribute to the breakdown of rocks.

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How do plants cause weathering?

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Plants can cause weathering through their roots, which can grow into cracks in rocks and break them apart.

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What role does water play in weathering?

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Water can cause both mechanical and chemical weathering; it can freeze and expand in cracks, breaking rocks apart, and it can dissolve minerals.

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What is an example of physical weathering?

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An example of physical weathering is the breaking of rocks due to freeze-thaw cycles.

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What is an example of chemical weathering?

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An example of chemical weathering is the rusting of iron in rocks when it reacts with oxygen and water.

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How does wind contribute to weathering?

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Wind can carry small particles that can erode rocks through abrasion, leading to weathering.