wind and water and then settle in layers with sand, silt, dead plants, and anir
skeletons.
4
What can you infer about the age of rocks as compared to humans?
A
Rocks have been around much longer than humans have.
B
Like humans, rocks are just a tiny part of Earth's history.
Humans have been around much longer than rocks have.
Humans have no way of finding out the age of a rock.