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WorksheetsSoil
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the common name for Horizon A?
a)
bedrock
b)
topsoil
c)
parent material
d)
subsoil
2.
What is humus?
a)
organic material rich in nutrients
b)
subsoil
c)
parent material
d)
trees
3.
Why is soil an important natural resource?
a)
soil is used to make buildings
b)
soil can grow crops
c)
soil comes from bedrock
d)
soil is full of mircobes
4.
Subsoil is made mostly of
a)
parent material
b)
humus
c)
clay and silt
d)
bedrock
5.
What is the main purpose of microbes in the soil?
a)
to release the nutrients in rocks
b)
to cause disease
c)
to feed animals
6.
Which describes the soil layers in order from the surface?
a)
top soil, bedrock, horizon C, subsoil
b)
top soil, subsoil, horizon C, bedrock
c)
top soil, horizon C, subsoil, bedrock
7.
Why are good conservation practices important for lumber companies to follow?
a)
It adds groundwater
b)
it increases soil erosion
c)
it decreases soil erosion
d)
the soil is shaded
8.
Which of these slows down soil erosion on construction sites?
a)
clear cutting
b)
strip mining
c)
contour plowing
d)
sandbags and nylon fencing
9.
Two methods of soil conservation in farming are
a)
reclamation and subsurface mining
b)
landscaping and nylon fencing
c)
selective harvesting and replanting
d)
contour plowing and windbreaks
10.
What type of erosion is slowed down by contour plowing and terracing?
a)
wind
b)
water
c)
air
11.
Which of the following soil types would contain the most nutrients?
a)
Soil with many large rock particles
b)
Soil with bedrock close to the surface
c)
soil that drains well through it
d)
soil with decomposed organic material
12.
What is a solution to stop wind erosion on a farmer's field?
a)
Plow up all of the plants
b)
Build a pond
c)
plant trees and shrubs on the edge
13.
What process breaks down bedrock to begin soil formation?
a)
leaching
b)
weathering
c)
decomposition
d)
humus
14.
What process breaks down bedrock to begin soil formation?
a)
leaching
b)
weathering
c)
decomposition
d)
humus
15.
Which of these particles in soil has the most water retention?
a)
clay
b)
gravel
c)
silt
d)
sand
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