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andreyandreev [35.5K]
3 years ago
14

Explain how water erosion by groundwater can form a cave.

Biology
2 answers:
Mrac [35]3 years ago
6 0

Answer:

Groundwater can cause erosion through chemical weathering. First, water that sinks into the ground mixes with carbon dioxide to form carbonic acid, a weak acid. Carbonic acid can break down limestone. Some of the limestone changes chemically and is carried away in a solution of water. This gradually hollows out pockets in the rock. Over time, these pockets develop into large holes underground—caves or caverns.

Explanation:

prohojiy [21]3 years ago
4 0
Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves.
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