Multiple choice

What process hollows out limestone caves?

  1. Mechanical weathering

  2. Spacial weathering

  3. Chemical weathering

  4. Cave weathering
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Limestone is composed of calcium carbonate, which dissolves when it reacts with acidic groundwater. This dissolution is a form of chemical weathering that creates large underground cavities over time. Mechanical weathering, by contrast, only breaks rocks physically without changing their chemical composition.

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