1. Explain the relationship
between the following terms:
superposition, strata.
4.a
2. Using your own words, define
relative age.
3. Describe the principle of
uniformitarianism.
4.c
4.a
Understanding Main Ideas
4. List the four processes
involved in the formation of
sedimentary rocks.
4.a
5. Complete the graphic orga-
nizer to summarize how Hut-
ton came to realize that Earth
is old. Add more arrows if needed