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
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
microscopic organisms producing compounds that break down rock
Responses
a crack in rock growing larger as water freezes in it
a crack in rock growing larger as water freezes in it
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
microscopic organisms producing compounds that break down rock
Answers
GPT-4o mini
The correct response is:
**a crack in rock growing larger as water freezes in it**
This example illustrates physical weathering, as it involves the physical processes of expansion and contraction that occur when water freezes and expands in cracks in the rock, causing the rock to fracture further without changing its chemical composition.
**a crack in rock growing larger as water freezes in it**
This example illustrates physical weathering, as it involves the physical processes of expansion and contraction that occur when water freezes and expands in cracks in the rock, causing the rock to fracture further without changing its chemical composition.