Question

earths processes: weathering and erosion unit re
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which is an example of physical weathering? (1 point)
○ oxidation of certain metals in rock
○ limestone in rock dissolving when acid rain flows across it
○ bits of rock rusting when exposed to oxygen and water
○ wind blowing off bits of a rock over time
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Explanation:

Physical weathering is the process of breaking down rocks without changing their chemical composition. Oxidation (e.g., rusting) and dissolution (e.g., limestone reacting with acid rain) involve chemical changes. Wind blowing off bits of a rock is a physical process as it only changes the rock's size and shape, not its chemical makeup.

Answer:

wind blowing off bits of a rock over time