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Groundwater And Stream Erosion And Deposiotn
Test Description: Formations caused by groundwater and stream erosion and deposition.
Instructions: Answer all questions to get your test result.
1) Streams with steep gradients have a(n) ______ velocity than those with gentle gradients.
A
none of these
B
lesser
C
average
D
greater
2) Streams cause erosion by:
A
hydraulic action.
B
sedimentation.
C
abrasion.
D
hydraulic action AND abrasion.
3) When a stream meets a large body of water it forms a(n)
A
levee.
B
base level.
C
flood plain.
D
alluvial fan.
4) The decrease in gradient of a river causes a stream to deposit its sediments
A
True because the river speeds up.
B
False because the river erodes more.
C
False because the river stays the same speed.
D
True because the river slows down.
5) Sediments that are too large to carry and do not move continuously are called the:
A
bed load.
B
suspended load.
C
back load.
D
dissolved load.
6) A triangular-shaped deposit of sediments that form where a river meets standing water is a(n):
A
levee.
B
alluvial fan.
C
flood plain.
D
delta.
7) Sediments carried as solids in a stream are the:
A
suspended load.
B
dissolved load.
C
back load.
D
bed load.
8) ______ erode fine-grained sediments from the continental slope and deposit them on the continental rise.
A
Long shore currents
B
Turbidity currents
C
Tidal currents
D
Land currents
9) The intermittent movement of bed load particles is known as
A
delta.
B
saltation.
C
suspended.
D
competence.
10) Acid rain is formed when water combines with
A
all of the above.
B
oxygen.
C
water.
D
carbon dioxide.
11) Limestone dissolves
A
not at all.
B
easily.
C
with difficulty.
D
only in tropical areas.
12) _________ form as calcium carbonate drips onto the the floor of a cave.
A
Soda straws
B
Stalactites
C
Columns
D
Stalagmites
13) When a stalactite and a stalagmite merge, they can form a:
A
column.
B
sinkhole.
C
cave.
D
cavern.
14) Stalactites and stalagmites are made from ___________ weathering
A
mechanical
B
chemical
C
a combination of chemical and mechanical
D
neither type of
15) To make carbonic acid, carbon dioxide combines with
A
rust.
B
water.
C
iron oxide.
D
copper.
*select an answer for all questions
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