WorksheetsWeathering and Soil
Total questions: 14
Worksheet time: 4hrs 30mins
Name
Class
Date
1.
In no till farming, plant stalks are
a)
destroyed
b)
covered with water
c)
left in the field
d)
plowed under
2.
When livestock eat all of the grass on the land, it is said to be
a)
overgrazed
b)
leached
c)
weathered
d)
all of the above
3.
Compared to the A Horizon in the soil profile, B Horizon
a)
is lighter in color
b)
contains materials leached from the A horizon
c)
contains less humus
d)
all of these
4.
The layer that contains the most humus and smaller rock & mineral fragments than the other layers is the _______ horizon
a)
A
b)
B
c)
C
d)
F
5.
Soil is a mixture of weathered rock and
a)
water and air
b)
decayed organic matter
c)
mineral fragments
d)
all of these
6.
Agricultural practices the slow erosion include
a)
planting trees
b)
plowing
c)
allowing livestock to graze whenever they want
d)
leaving soil open to rain
7.
Causes of soil erosion include
a)
wind
b)
water
c)
removal of vegetation
d)
all of these
8.
The minerals found in the B and C Horizons were dissolved in water and carried down to those soil layers by a process called
a)
oxidation
b)
leaching
c)
weathering
d)
precipitation
9.
Below the C Horizon is
a)
humus
b)
rock
c)
clay
d)
soil
10.
The _______ Horizon consists mostly of parent rock
a)
A
b)
N
c)
B
d)
C
11.
Why is topsoil important?
a)
It contains nutrients needed for plant growth
b)
It erodes faster than it is created
c)
Both
d)
Neither
12.
Contour farming and terracing are methods used to reduce erosion on slopes
a)
Fasle
b)
True
13.
Which of the following is NOT a method used to reduce erosion?
a)
deforestation
b)
terracing
c)
no till farming
d)
contour farming
14.
Which of the following is NOT a cause of erosion?
a)
water
b)
wind
c)
sunlight
d)
forest harvesting
100 %
