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FWE Chapter 17 and Soils Review

Total questions: 63

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

What is a material found on the surface of the earth consisting of rock, sand, clay, dead plants, and animal remains?

a)

silt

b)

soil

c)

bedrock

d)

loam

2.

Which soil has the smallest particles?

a)

clay

b)

loam

c)

sand

d)

silt

3.

What is the layer of rock that is below the soil?

a)

subsoil

b)

topsoil

c)

humus

d)

bedrock

4.

Which soil has the largest particles?

a)

clay

b)

sand

c)

loam

d)

silt

5.

What is the middle layer of soil which is a combination of soil and rocks?

a)

humus

b)

subsoil

c)

topsoil

d)

bedrock

6.

What is the layer under the Humus that provides support and nutrients to plants?

a)

humus

b)

bedrock

c)

topsoil

d)

subsoil

7.

What soil is a mixture of sand, silt, and clay?

a)

soil

b)

silt

c)

clay

d)

loam

8.
Which layer of soil are these roots growing in?
a)
subsoil
b)
topsoil
9.
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
10.
What is the layer of soil that contains humus, leaf litter, and other organic matter?
a)
O - Organic
b)
A - Topsoil
c)
B - Subsoil
d)
R - Bedrock
11.
Layers of soil are also known as:
a)
Soil Profiles
b)
Soil Horizons
c)
Soil sheets
d)
Soil cores
12.
An organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material is a...
a)
Decomposer
b)
Burrower
c)
Humus source
13.

The soil where we live has a lot of ________ and _________.

a)

shells and rocks

b)

sand and clay

c)

leaves and moss

d)

black and gray

14.

Which soil is best to grow plants in?

a)

silt

b)

loam

c)

sand

d)

clay

15.
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
16.
Layers of soil are also known as:
a)
Soil Profiles
b)
Soil Horizons
c)
Soil sheets
d)
Soil cores
17.
Ellen 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)
sand
c)
silt
d)
humus
18.
The texture of soil depends mainly on
a)
the types of plants that grow in the soil.
b)
the size of the particles in the soil.
c)
the color of the soil.
d)
the number of worms in the soil.
19.
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)
humus
d)
silt
20.

Sand, silt, and clay are used to determine what in soil?

a)

Texture

b)

Depth

c)

Slope

d)

Erosion

21.

How many land capability classes are used in land judging?

a)

4

b)

5

c)

8

d)

10

22.

How many land capability classes are used for cropland?

a)

1

b)

2

c)

4

d)

8

23.

How water moves through the soil profile is called?

a)

Texture

b)

Erosion

c)

Permeability

d)

Surface Runoff

24.

The rise or fall in elevation over 100 feet is called?

a)

Depth

b)

Erosion

c)

Slope

d)

Surface Runoff

25.

What can cause erosion?

a)

Wind

b)

Water

c)

Both wind & water

26.

What major ecological disaster prompted the emphasis on more soil conservation in our country?

a)

Dust Bowl

b)

World Wars

c)

Hurricane Katrina

d)

Forming of Grand Canyon

27.

The best (least limitations) land capability class is what?

a)

I

b)

III

c)

V

d)

VIII

28.

The worst (most limitations) land capability class is what?

a)

I

b)

III

c)

VI

d)

VIII

29.

Soil depth includes what?

a)

Organic matter and topsoil

b)

Topsoil & subsoil

c)

Subsoil & bedrock

d)

None of these

30.

"Ribboning" soil helps determine its what?

a)

Texture

b)

Depth

c)

Surface Runoff

d)

Land Capability Class

31.

Which organisms would be at the top or last trophic level?

a)

plant

b)

herbivore

c)

omnivore

d)

carnivore

32.

Mice might grow in population and destroy the community by eating all of the berry bushes if

a)

wolves and snakes were removed from the food web

b)

another predator migrated in to the community

c)

the snake population grew

d)

none of these

33.

The difference between weather and climate is that climate is:

a)

The average, year-to-year conditions

b)

The day-to-day conditions

c)

Described in terms of months at a time

d)

B and C are both correct

34.

In this photo, what is an abiotic factor?

a)

Deer

b)

Grass

c)

rain

35.
Study of interactions between organisms and their environment 
a)
niche
b)
community 
c)
ecology
d)
ecosystem
36.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
37.
Non-living factor that affects an ecosystem
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
38.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
39.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

40.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
41.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
42.
What does fungi do to dead plants and animals?
a)
Leave them there
b)
Decompose them
c)
Wait for other animals to eat them
d)
Move away
43.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

44.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

45.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

46.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

47.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

48.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
49.

When death rate is equal to birth rate...

a)

population increases

b)

population decreases

c)

population stays the same.

d)

population rapidly increases then becomes stable

50.

When the death rate rises and the birth rate lowers...

a)

population increases

b)

population decreases

c)

population stays the same

d)

all of these

51.

Two arctic fox are fighting with a polar bear for a sea lion carcass. One fox distracts the bear while the other eats. What type of limiting factor is the polar bear?

a)

Predator-Prey Relationships

b)

Competition

c)

Herbivory Effect

d)

Weather

52.

A duck population is breeding at exponential rates. The snakes that hunted them have been collected by fur collectors. They make boots from python snake skin. What is the limiting factor to the snakes?

a)

Ducks

b)

Predator-Prey

c)

Exponential Growth

d)

Humans

53.

Which experiences the least change over time?

a)

Pioneer Species

b)

Primary Succession

c)

Aquatic Succession

d)

Climax Community

54.

What is a common characteristic among pioneer species?

a)

roots that break apart rocks

b)

long thick roots

c)

exposed surface roots

d)

soak up water quickly

55.

Which of the following best describes primary succession?

a)

Volcano wipes out ecosystem that gradually grows back from ash covered soil

b)

Volcano creates a new island of rock that must break down to form an ecosystem

c)

Forest fire burns down forest that must bounce back over time

d)

Tornado destroys a crop that must slowly grow back over time.

56.

If farmers use a controlled burn to prevent forest fires, what would most likely be the first plants to return?

a)

trees

b)

shrubs

c)

mosses

d)

grasses

57.

Primary succession occurs in areas with:

a)

very little soil

b)

lots of soil

c)

no soil

d)

soil that has been disturbed

58.

What best describes the term succession?

a)

rapid changes that create an ecosystem overnight

b)

gradual changes over time to fully create or restore and ecosystem

c)

forest with the tallest trees

d)

the rate species produce offspring

59.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
60.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
d)
Lichens convert carbohydrates into fossil fuels.
61.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
62.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
eutrophication
c)
secondary succession
d)
intermediate
63.

What best describes the term succession?

a)

rapid changes that create an ecosystem overnight

b)

gradual changes over time to fully create or restore and ecosystem

c)

forest with the tallest trees

d)

the rate species produce offspring

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