Section #: 6.1
Formation of Sedimentary Rocks
Practice Test
1.
When are sediments transported by a river deposited?
a.
when the river is transporting too much sediment
b.
when the discharge of a river is increased
c.
when the velocity of the river slows down
d.
when the river gains velocity
2.
What type of weathering breaks rocks into smaller pieces of rock without chemical change?
a.
physical weathering
b.
erosional weathering
c.
clastic sediments
d.
chemical weathering
Hint
3.
Dissolution is an example of __________.
a.
limestone
b.
chemical weathering
c.
erosion
d.
physical weathering
Hint
4.
Symmetrical ripples are the result of sediments being moved __________.
a.
in a back-and-forth motion
b.
in a forward direction
c.
in a forward direction up an incline
d.
in a circular direction
5.
Pieces of preexisting rocks are called __________.
a.
minerals
b.
sediments
c.
rocks
d.
atoms
6.
What are the two types of weathering?
a.
erosion and physical
b.
cementation and chemical
c.
erosion and chemical
d.
physical and chemical
Hint
7.
What methods of transport typically deposit sorted sediments?
a.
glaciers and wind
b.
glaciers and water
c.
mass movement and water
d.
water and wind
8.
What process reduces the pore space in sediments due to the weight of overlying sediments?
a.
metamorphism
b.
compaction
c.
cementation
d.
erosion
Hint
9.
What processes aid in the formation of sediments?
a.
weathering and erosion
b.
deposition and solidification
c.
weathering and metamorphism
d.
erosion only
Hint
10.
What is the process called that changes sediments to sedimentary rocks?
a.
erosion
b.
weathering and metamorphism
c.
solidification
d.
lithification
Hint
11.
A glacial deposit often is __________.
a.
unsorted
b.
well-sorted
c.
cross-bedded
d.
rippled
Hint
