Question
Which is an example of physical weathering?(1 point)
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
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
Answers
GPT-4o mini
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.
**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.