Geography · Geomorphology - Weathering Processes
Weathering processes involve the breakdown and alteration of rocks near the Earth's surface. Which of the following is the primary distinction between physical (mechanical) weathering and chemical weathering?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Physical weathering alters the chemical mineralogy of rocks, while chemical weathering only changes their outer mechanical appearance.
- 2Chemical weathering occurs exclusively through biological activities, while physical weathering involves no biological factors.
- 3Physical weathering disintegrates rocks without changing their chemical composition, while chemical weathering alters the internal mineral structure.✓
- 4Physical weathering occurs only in arid climates, whereas chemical weathering is limited entirely to polar areas.
Correct answer
Physical weathering disintegrates rocks without changing their chemical composition, while chemical weathering alters the internal mineral structure.
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