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Ecology Test
Test Description: Review game for Ecology Test (Soil and River Ecology)
Instructions: Answer all questions to get your test result.
1) Temperate soil is
A
full of water.
B
salty and thin.
C
fertile and has the most nutrients.
D
the worst type of soil to grow plants.
2) An old river has
A
few tributaries and a high gradient.
B
many meanders, a low gradient, and flows slowly.
C
few meanders, a high gradient, and flows fast.
D
few tributaries and high erosive power.
3) Rich farming areas develop in
A
tropical climates.
B
desert climates.
C
flood plains.
D
deltas.
4) Erosion is
A
deeper in a mature river.
B
weak in a youthful river.
C
the removal and transport of surface material, such as rock and soil.
D
the breakdown of rock by mechanical (physical) or chemical means.
5) A watershed is
A
an underground area of water storage.
B
the land drained by a river system, including the main river and all of its tributaries.
C
rock and soil that is deposited by streams.
D
a fan shaped deposit near a large body of water.
6) What is the amount of open space between individual rock particles?
A
alluvium
B
porosity
C
impermeability
D
permeability
7) Nonpoint source pollution comes from many sources. What is an example of this?
A
runoff containing fertilizer.
B
oil refinery wastewater.
C
factory drains.
D
sewer pipe.
8) What is a measure of the change of elevation in a river?
A
erosion
B
gradient
C
load
D
discharge
9) Loam is soil that
A
fine-grained sediment deposited by wind.
B
is the rock that is the source of the soil.
C
contains equal amounts of sand, silt, and clay.
D
is small particles of decayed plant and animal material.
10) The source of soil is
A
parent rock.
B
bedrock.
C
topsoil.
D
horizon A.
*select an answer for all questions
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