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WorksheetsScience Chapter 2 TEST Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
What is crumbly, dark soil that is a mixture of humus, clay, and other materials?
a)
subsoil
b)
topsoil
c)
bedrock
d)
loam
2.
Abrasion is when sand and other rock particles that are carried by organisms, water, or ice wear away exposed rock surfaces.
a)
True
b)
False
3.
What type of soil is made of about equal parts clay, sand, and silt and is the "best" soil for growing most plants?
a)
topsoil
b)
bedrock
c)
loam
d)
subsoil
4.
What forms as plant and animal remains decay?
a)
loam
b)
topsoil
c)
bedrock
d)
humus
5.
The type of soil and climate are the most important factors that determine the rate at which weathering occurs.
a)
True
b)
False
6.
Geologists infer that the processes from the past still shape the Earth today. What is this called?
a)
erosion
b)
permeable
c)
uniformitarianism
d)
soil conservation
7.
Rocks that are ____ are full of connected air spaces and weather more easily.
a)
permeable
b)
bedrock
c)
freezing and thawing
d)
eroding
8.
Often called topsoil and is a mixture of humus, clay, and other materials
a)
Horizon C
b)
Horizon A
c)
Horizon B
9.
Living organisms may produce weak acids that slowly dissolve rock around roots where plants grow.
a)
True
b)
False
10.
What is the name for the organisms that break down animal and plant remains?
a)
decomposer
b)
humus source
c)
burrower
11.
What is the name of the solid layer of rock beneath the soil?
a)
subsoil
b)
bedrock
12.
Anything in the environment that humans use is a ____.
a)
type of soil
b)
texture of soil
c)
natural resource
d)
pH scale
13.
What is the name for the scale used to measure soil acidity?
a)
fertility
b)
pH scale
14.
What measures how well soil supports plant growth?
a)
fertility
b)
pH scale
c)
decomposers
d)
bacteria
15.
Fertile soil is so valuable because...
a)
all living things on land need soil
b)
there is a limited amount of it
c)
it takes a long time to form
d)
all of the above
16.
Forms as bedrock begins to weather, breaking rocks into smaller pieces
a)
Horizon C
b)
Horizon A
c)
Horizon B
17.
Freezing and thawing are agents of mechanical weathering that cause cracks in rocks to expand.
a)
True
b)
False
18.
What is the name of the layer of soil with clay and other particles, but little humus?
a)
subsoil
b)
bedrock
c)
topsoil
19.
What is the management of soil to limit its destruction?
a)
soil conservation
b)
natural resources
c)
conservation plowing
d)
uniformitarianism
20.
The method of plowing the remains of the previous year's crop into the ground is called _____.
a)
conservation plowing
b)
crop rotation
c)
contour plowing
d)
soil conservation
21.
Often called subsoil and consists of clay and rock particles, but little humus
a)
Horizon A
b)
Horizon C
c)
Horizon B
22.
Oxygen is an agent of chemical weathering that produces carbonic acid as a product of oxidation.
a)
True
b)
False
23.
Plowing fields along the curves of a slope is called ____.
a)
conservation plowing
b)
contour plowing
24.
Soil texture depends on the size of the soil particles.
a)
True
b)
False
25.
When a farmer plants different crops in a field each year is called ___.
a)
contour plowing
b)
conservation plowing
c)
soil conservation
d)
crop rotation
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