Which is an example of physical weathering?(1 point)

Question

Responses

a crack in rock growing larger as water freezes in it
a crack in rock growing larger as water freezes in it

microscopic organisms producing compounds that break down rock
microscopic organisms producing compounds that break down rock

lichen releasing a weak acid that dissolves rock
lichen releasing a weak acid that dissolves rock

bits of iron in rock rusting when exposed to oxygen and water
bits of iron in rock rusting when exposed to oxygen and water

Answer 1

The correct answer is:

a crack in rock growing larger as water freezes in it

This example illustrates physical weathering, where the physical process of water freezing and expanding causes the crack to enlarge, without altering the chemical composition of the rock.