Sedimentary and Metamorphic Rocks
Practice Test
1.
What are the two types of weathering?
a.
cementation and chemical
b.
erosion and chemical
c.
physical and chemical
d.
erosion and physical
2.
What would happen to the pond in the figure if the freshwater inflow stream and path to the ocean disappeared?
a.
The entire lake would eventually evaporate away, leaving only evaporites.
b.
Water would come from somewhere else.
c.
All life will stop living in the pond.
d.
It would produce extrusive igneous rocks.
3.
What is the process called that changes sediments to sedimentary rocks?
a.
solidification
b.
lithification
c.
weathering and metamorphism
d.
erosion
4.
What processes aid in the formation of sediments?
a.
erosion only
b.
weathering and metamorphism
c.
deposition and solidification
d.
weathering and erosion
5.
Before metamorphism, marble was what type of rock?
a.
limestone
b.
siltstone
c.
rock salt
d.
schist
6.
__________ metamorphic rocks are formed at high temperatures and medium to low pressures.
a.
Regional
b.
Hydrothermal
c.
Low-grade
d.
Contact
7.
The grains of a breccia most likely traveled __________ than the grains in a conglomerate.
a.
a shorter distance
b.
a different distance
c.
the same distance
d.
a farther distance
8.
Metamorphic rocks with aligned minerals have a __________ texture.
a.
nonfoliated
b.
foliated
c.
distinct
d.
compact
9.
A __________ ranges in grain size from 2 mm to 0.062 mm.
a.
boulder
b.
silt grain
c.
cobble
d.
sand grain
10.
What do different grades of metamorphic rocks reflect?
a.
relative amount pressure and temperature
b.
relative amount of pressure only
c.
relative amount of compaction
d.
relative amount of temperature and cementation
11.
What type of weathering breaks rocks into smaller pieces of rock without chemical change?
a.
physical weathering
b.
erosional weathering
c.
chemical weathering
d.
clastic sediments
12.
A glacial deposit often is __________.
a.
rippled
b.
well-sorted
c.
unsorted
d.
cross-bedded
13.
How are clastic rocks classified?
a.
particle size
b.
method of depostion
c.
mineralogy
d.
metamorphic grade
14.
Why are sedimentary rocks important?
a.
They provide many natural resources and evidence of Earth's past.
b.
They contain gemstones of high value.
c.
They contain fossils.
d.
They provide building stones.
15.
According to the figure, which is NOT a factor in determining regional metamorphism grades?
a.
time
b.
pressure
c.
heat
d.
depth
