What happens to rocks as water combines
with gases in the air to form acids?
A. The acid dissolves or alters the chemical
composition of the rock.
B. The acid solidifies any loose rock particles,
which makes the rock denser.
C. The acid forms a protective coating on
rocks, making it difficult for them to
weather.
D. The acid creates cracks in the rocks, which
allow air to circulate through the rock,
causing it to weather