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Deposition Factors
Test Description: Relationship between size, shape, density, velocity and deposition in the environment.
Instructions: Answer all questions to get your test result.
1) Which statement best describes pebbles?
A
Pebbles are rocks that form due to cementation and compaction.
B
Pebbles are sediments that range in size from 0.2 cm to 6.4 cm.
C
Pebbles are rocks that form due to melting and solidification.
D
Pebbles are sediments that weather from larger sand grains.
2) Which particles are the last to settle as a river's velocity decreases?
A
flattened clay particles
B
rounded sand particles
C
rounded silt particles
D
flattened pebbles
3) When particles of uniform shape and density are dropped into a calm lake, silt will settle faster than
A
cobbles
B
sand
C
clay
D
pebbles
4) Which statement best explains why a lead sphere settles faster then a glass sphere when dropped into water?
A
The lead sphere has a higher density.
B
The glass sphere has more surface area.
C
The lead sphere takes up less space.
D
The glass sphere has a smoother surface.
5) Which characteristics of a particle would usually result in the shortest settling time for the particle in calm water?
A
low density and flat shape
B
low density and round shape
C
high density and flat shape
D
high density and round shape
6) Compared to a low-density spherical particle, a high-density spherical particle of the same size will sink through water
A
more slowly
B
at the same rate
C
more rapidly
D
none of the above
7) A sedimentary particle is dropped into a cylinder of water. The particle will take the longest time to settle if the particle has
A
low density, small size, and spherical shape
B
low density, small size, and flattened sh
C
high density, large size, and spherical shape
D
high density, large size, and flattened shape
8) When small particles settle through water faster than large particles, the small particles are probably
A
more dense
B
lighter
C
flatter
D
better sorted
9) Why do the particles carried by a river settle to the bottom as the river enters the ocean?
A
The kinetic energy of the particles increases as the particles enter the ocean.
B
The velocity of the river water decreases as it enters the ocean.
C
The large particles have a greater surface area than the small particles.
D
The density of the ocean water is greater than the density of the river water.
10) Transported sediments are usually deposited at locations in which
A
an increase in the physical weathering of rocks occurs
B
a decrease in the speed of the agent of erosion occurs
C
the chemical breakdown of rocks occurs
D
the freezing and thawing of water occurs
*select an answer for all questions
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