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WorksheetsSoil Review
Total questions: 42
Worksheet time: 31mins
Name
Class
Date
1.
In which layer of soil would you expect to find rock fragments, nutrients and decaying plant and animal matter?
a)
Litter
b)
Topsoil
c)
Subsoil
d)
Bedrock
2.
Soil is the end product of the influence of the climate, relief, organisms, parent materials and time. These five conditions contribute to _________ along with the depth and width of the soil horizon?
a)
Rocks, minerals and soil
b)
The formation or lack of formation of soil.
c)
Rock cycle
d)
Weathering and erosion
3.
Rich topsoil takes so long to form that it is important to protect Earth’s soil. Poor soil management can result in three problems:
a)
Weathering, crop rotation and terracing
b)
Unusable land, starvation and people moving
c)
Erosion, nutrient depletion and desertification
d)
Less food, less people and less money
4.
Rich topsoil takes so long to form that it is important to protect Earth’s soil. Poor soil management can result in three problems:
a)
Weathering, crop rotation and terracing
b)
Unusable land, starvation and people moving
c)
Erosion, nutrient depletion and desertification
d)
Less food, less people and less money
5.
How can soil be conserved?
a)
It cannot be conserved.
b)
It is conserved by using it
c)
Planting the same crop over and over
d)
Crop rotation, contour plowing and conservation plowing
6.
Ice wedging causes mechanical weathering of rock by means of
a)
heating and cooling.
b)
freezing and thawing of water.
c)
plant growth.
d)
animal actions.
7.
The most important factors in determining the rate of weathering are
a)
rock type and climate.
b)
carbon dioxide and acid rain.
c)
animal actions and oxygen.
d)
abrasion and acids from plant roots.
8.
Ohio framers depend on soil to grow their crops. Which type of soil would be best for Ohio farmers to use?
a)
Silty Soil
b)
Sandy Soil
c)
Clay Soil
d)
Loam Soil
9.
Carrying rock fragments to a new location is called
a)
mechanical weathering.
b)
erosion.
c)
transportation.
d)
chemical weathering.
10.
The organic matter in humus can be made of___.
a)
dead worms
b)
dead insects
c)
twigs
d)
all of these
11.
One way that people cause greater erosion is by ___.
a)
building terraces
b)
planting grass
c)
removing plants
d)
building walls
12.
What is the major cause of weathering and erosion?
a)
moving water
b)
wind
c)
ice
d)
glaciers
13.
Which soil layer contains lots of humus and other nutrients?
a)
A horizon
b)
B horizon
c)
C horizon
d)
D horizon
14.
Soil _____ depends on the size on the rock particles in the soil.
a)
texture
b)
color
c)
pH
d)
acidity
15.
The small connected spaces between particles that allow the movement of liquid through them
a)
perosity
b)
permability
c)
dispersal
d)
pores
16.
All of the following are imporant uses of soil except for
a)
oxygen
b)
loam
c)
habitats
d)
food
17.
when soil losses is fertility, the value of the soil ____.
a)
grows
b)
decreases
c)
increases
d)
the value stays the same
18.
The dust bowl is an area of land which vegetataion has been lost and soil reduced to dust and eroded, especially as a consequence of ____ and unsuitable farming practices.
a)
carbonic acid
b)
erosion
c)
drought
d)
acid rain
19.
Less than ___ of Earth’s surface has soil suitable for growing plants
a)
1/8
b)
1/4
c)
2/3
d)
3/4
20.
pH level measures the ___ of the substance.
a)
texture
b)
fertility
c)
growth
d)
acidity
21.
What do we call the loose, weathered material on Earth's surface in which plants can grow.
a)
dirt
b)
soil
c)
sediment
d)
rock
22.
The layer of rock beneath the soil
a)
subsoil
b)
topsoil
c)
bedrock
d)
Earth's core
23.
An organism that breaks down wastes and dead organisms.
a)
carnivore
b)
decomposer
c)
herbivore
d)
decomposition
24.
The method of farming where a number of different plants are grown one after the other on a field, so that the soil stays healthy and fertile.
a)
Soil conservation
b)
Conservation plowing
c)
Contour plowing
d)
Crop rotation
25.
The protection of soil from erosion and other types of deterioration
a)
Soil conservation
b)
Conservation plowing
c)
Contour plowing
d)
Crop rotation
26.
Soil formation occurs at different rates and is based on environmental conditions, types of existing bedrock and rates of weathering.
Fertile soil is an important natural resource because ______?
Fertile soil is an important natural resource because ______?
a)
No new soil can be produced.
b)
There is an unlimited supply of fertile soil.
c)
Everything that lives on land depends on soil.
d)
Plants cannot grow in fertile soil.
27.
Which of the following is NOT one of the three layers of soil?
a)
topsoil
b)
undersoil
c)
subsoil
d)
bedrock
28.
Which of the following is NOT one of the three types of soil?
a)
clay
b)
mud
c)
silt
d)
sand
29.
_______ is the type of soil used most often with plants. It is a mixture of clay, sand, and silt.
a)
loam
b)
humus
c)
sand
d)
dirt
30.
Humus is.....
a)
A food we eat with pretzels.
b)
the dead parts of plants and animals in soil.
c)
The tiny particles inside of soil.
d)
The roots that come off of a plant and live in soil.
31.
Tina grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?
a)
clay
b)
humus
c)
sand
d)
silt
32.
When there are not enough plants to hold topsoil in place, water and _______ carry the topsoil away, leaving the subsoil exposed
a)
sunlight
b)
birds
c)
magnetic field
d)
wind
33.
When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?
a)
sand
b)
silt
c)
clay
d)
humus
34.
Which of the following is the largest particle in soil?
a)
sand
b)
silt
c)
humus
d)
clay
35.
Many plants cannot grow in clay soil. Why is this true?
a)
Water doesn't drain well through clay.
b)
Clay soil does not have many nutrients
c)
Roots cannot easily push through clay soil.
d)
All of these choices.
36.
You dig a small hole in the soil and the next day it rains. The hole fills with water, but does not empty even after several days of dry weather. What is the soil mostly made of?
a)
clay
b)
sand
c)
silt
d)
humus
37.
Many plants cannot grow in sandy soil. Why is this true?
a)
Oxygen cannot pass through sandy soil.
b)
Roots cannot easily push through clay soil.
c)
Sandy soil does not hold enough water.
d)
Sandy soil has too many nutrients.
38.
What is a soil problem all farmers face?
a)
soil hardening
b)
soil spoiling
c)
soil polution
d)
soil erosion
39.
Where does most of the water go when it rains?
a)
in the ocean
b)
it absorbs into the soil
c)
in the rivers
d)
in the gutters
40.
What are the three components of soil?
a)
insects, sand, topsoil
b)
clay, sand, humus
c)
topsoil, subsoil, bedrock
d)
earthworms, sand, silt
41.
The situation that arises when more soil nutrients are used than the decomposers can supply.
a)
Dirt
b)
Soil depletion
c)
Nutrient depletion
d)
Nutrient erosion
42.
________ is the process in which fertile land becomes desert, usually as a result of drought, deforestation, or inappropriate agriculture.
a)
Dry erosion
b)
Desertification
c)
Arizonafication
d)
Dust Bowl
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