And moves?
9. What is a fold?
Section Review 2.1
8. What do we call a fracture zonefon called aftershocks
1. What is geology?
when a layer of rock breaks underss frequent intervals
2. Into what three major sections can the earth
ally decreasing in
be divided based on its composition?
3. Why are seismic waves important for study-
10. What kind of mountains may form whe
D
ing the mantle and core?
molten rock collects beneath a rocka
4. Where is the Mohorovičić discontinuity
but does not erupt onto the earth's
(Moho) located?
face?
5. Name the two layers of the central part of the
11. Why are topographic maps useful?
earth.
6. What is the relationship between the litho-
Face Thought Provoker
sphere and asthenosphere?
If the earth is less than 10,000 years old,
7. What theory states that the movements of
as a straightforward reading of the Bible
What
tectonic plates affect many geological struc-
indicates, why must the continents have
tures and processes?
moved much faster in the past if they
were ever together?
Seisn
fact
are
quakes
science
has sh
scient