15.1 (alt)

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What is chemical weathering?

Back

Chemical weathering is the process that breaks down rocks through chemical changes, altering their mineral composition.

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What is mechanical weathering?

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Mechanical weathering is the process that breaks rocks into smaller pieces without changing their chemical composition.

Front

What is frost wedging?

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Frost wedging is a type of mechanical weathering where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart.

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What type of rock is most commonly affected by chemical weathering?

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Limestone is most commonly affected by chemical weathering due to its solubility in acidic conditions.

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What is the main difference between mechanical and chemical weathering?

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The main difference is that mechanical weathering physically breaks rocks into smaller pieces, while chemical weathering alters the chemical structure of the rocks.

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In which climate is frost wedging most effective?

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Frost wedging is most effective in cold climates where temperatures fluctuate around freezing.

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What role does water play in weathering?

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Water plays a crucial role in both mechanical and chemical weathering, facilitating processes like frost wedging and chemical reactions.

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What is the impact of temperature on weathering processes?

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Temperature affects the rate of weathering; higher temperatures can increase chemical reactions, while freeze-thaw cycles enhance mechanical weathering.

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How does vegetation influence weathering?

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Vegetation can influence weathering by breaking up soil and rock with roots and by producing organic acids that enhance chemical weathering.

Front

What is the significance of weathering in the rock cycle?

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Weathering is significant in the rock cycle as it breaks down rocks into soil and sediments, which can lead to the formation of new rocks.