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5th 6 WEEKS Review

Total questions: 170

Worksheet time: 2hrs 56mins

Name
Class
Date
1.

What is the primary source of energy in an energy pyramid?

a)

Wind

b)

Sun

c)

Water

d)

Soil

2.

Which biome is characterized by low rainfall and extreme temperatures?

a)

Tropical Rainforest

b)

Tundra

c)

Desert

d)

Deciduous Forest

3.

What does biodiversity refer to?

a)

The variety of water sources in an ecosystem

b)

The number of carnivores in a food chain

c)

The variety of life in a particular habitat or ecosystem

d)

The amount of energy transferred between trophic levels

4.

In the water cycle, what process involves water vapor cooling and changing into liquid?

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Transpiration

5.

What is the role of decomposers in a food chain?

a)

They produce their own food through photosynthesis.

b)

They consume other organisms for energy.

c)

They break down dead organisms, returning nutrients to the soil.

d)

They consume plants to obtain energy.

6.

Which of the following is an example of a quaternary consumer?

a)

Grass

b)

Wolf

c)

Hawk

d)

Rabbit

7.

What type of consumer is an organism that eats both plants and animals?

a)

Herbivore

b)

Carnivore

c)

Omnivore

d)

Autotroph

8.

Which term describes organisms that can produce their own food?

a)

Heterotroph

b)

Autotroph

c)

Decomposer

d)

Secondary consumer

9.

What is a carnivore?

a)

An animal that eats only plants

b)

An animal that eats both plants and animals

c)

An animal that eats only other animals

d)

An organism that produces its own food

10.

Which of the following is NOT a characteristic of a herbivore?

a)

Eats only plants

b)

Can be a primary consumer

c)

Produces its own food

d)

Has adaptations to digest plant material

11.

What is the main function of an aquifer in the water cycle?

a)

To store groundwater

b)

To evaporate water into the atmosphere

c)

To condense water vapor into rain

d)

To transport water across the surface of the earth

12.

Which level of the energy pyramid contains the most energy?

a)

Quaternary consumers

b)

Secondary consumers

c)

Primary consumers

d)

Producers

13.

What is a watershed?

a)

A storage area for groundwater

b)

An area of land that drains all the streams and rainfall to a common outlet

c)

A biome characterized by its water content

d)

A method of water purification

14.

In a food chain, what is the term for organisms that obtain energy by eating only plants?

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Autotrophs

15.

What happens to the energy as it moves up the energy pyramid?

a)

It increases

b)

It remains constant

c)

It decreases

d)

It is recycled

16.

What would happen to the bird if the green fish died out?

a)

the bird population would grow

b)

the bird population would die out

c)

the smaller fish will die out

17.

What is the bottom layer of the an energy pyramid?

a)

producer

b)

tertiary consumer

c)

Secondary consumer

d)

primary consumer

18.

the top layer of an energy pyramid a primary consumer?

a)

true

b)

false

19.

What does an energy pyramid show?

a)

Energy flow in a community

b)

Longest lifespans

c)

The stronger animal the higher it is on the pyramid

20.

All tertiary consumers are scavengers

a)

true

b)

false

21.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

22.

What would happen if the primary consumers died out?

a)

the producers would grow and the secondary and tertiary consumers would die

b)

producers would die out

c)

consumers would grow

23.

Is a scavenger a primary consumer?

a)

Yes

b)

No

24.

decomposers are producers.

a)

true

b)

false

25.

A cheetah can be a primary, secondary, tertiary consumers.

a)

yes

b)

No

26.
In this energy pyramid, what is the proper name for ANY ORGANISM ABOVE THE PRODUCER LEVEL?
a)
decomposers
b)
consumers
c)
producers
d)
omnivores
27.
Which group are the producers? 
a)
1 and 2
b)
3 and 4
c)
4
d)
3
28.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
29.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
30.
Bears eat a variety of foods including fish, berries, other types of vegetation.  Bears would best be classified as – 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
31.
Snakes eat many types of small mammals including mice and rabbits as well as other lizards.  Snakes would best be classified as a - 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
32.
Horses eat grasses and other plants in order to gain their nutrition.  Horses would best be classified as - 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
33.
What are organisms that use other organisms for food in order to gain energy?
a)
decomposers
b)
producers
c)
herbivores
d)
consumers
34.
Which are decomposers?
a)
humans
b)
trees
c)
red wolves
d)
worms
35.
From where do producers get their energy?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
36.
The process of using sunlight, carbon dioxide, and water to make sugar and oxygen is called _________?
a)
chlorophyll
b)
evaporation
c)
photosynthesis
d)
transportation
37.
A living organism that puts materials from dead  plants and animals back to the soil is called a ____________?
a)
carnivore
b)
decomposer
c)
herbivore
d)
omnivore
38.
What do the arrows represent in this diagram?
a)
who is being eaten
b)
the flow of energy
c)
the decomposition of organisms
d)
what things can change into
39.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
40.
A secondary consumer 
a)
eats primary consumers
b)
eats producers
c)
eats plants
41.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

42.

What would happen if the primary consumers died out?

a)

the producers would grow and the secondary and tertiary consumers would die

b)

producers would die out

c)

consumers would grow

43.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
44.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
45.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
46.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
47.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
48.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
49.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
50.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
51.

Which of the following is producer/autotroph?

a)

rabbit

b)

frog

c)

tree

d)

worm

52.

A plant is...

a)

an autotroph

b)

a heterotroph

c)

a primary consumer

d)

a carnivore

53.

A person who eats a chicken that ate grain is a ...

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

quaternary consumer

54.

A cow is...

a)

a primary consumer

b)

a heterotroph

c)

an herbivore

d)

all are correct

55.

Primary consumers eat...

a)

primary producers

b)

primary consumers

c)

secondary consumers

d)

quaternary consumers

56.

Autotrophs...

a)

make their own food

b)

are the base of the food chain

c)

are primary producers

d)

all are correct

57.

Secondary consumers eat...

a)

primary producers

b)

primary consumers

c)

tertiary consumers

d)

quaternary consumers

58.

A lion that eats a zebra that ate grass is a ...

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

59.

Tertiary consumers eat...

a)

primary producers

b)

primary consumer

c)

secondary consumers

d)

quaternary consumers

60.

A bear, that eats a fish, that ate bugs, that ate algae is a...

a)

primary producer

b)

secondary consumer

c)

primary consumer

d)

tertiary consumer

61.

A heterotroph...

a)

is an autotroph

b)

eats other organisms

c)

is a primary producer

d)

is an autotroph & a primary producer

62.

A top predator....

a)

has natural enemies

b)

doesn't eat meat

c)

is a heterotroph

d)

is a detrivore

63.

If a person eats a vegetable the person is acting as a...

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

64.

As nutritional energy passes through the food chain, energy...

a)

is lost

b)

is gained

c)

remains constant

d)

increases, then decreases

65.

When a person eats a steak (from a cow), the person is acting as a...

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

66.

A detrivore...

a)

is an autotroph

b)

eats dead organisms

c)

kills animals

d)

all are correct

67.

There are more tertiary consumers than there are

a)

primary consumers

b)

secondary consumers

c)

primary producers

d)

quaternary consumers

68.

If a person eats a salmon (that ate smaller fish, that ate algae) the person is acting as a...

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

69.

What is the 1st trophic level of a food chain?

a)

primary producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

70.

Secondary consumers are also known as... (choose 2 answers)

a)

primary consumers

b)

carnivores

c)

omnivores

d)

autotrophs

71.

The food chain starts with....

a)

the sun

b)

primary producers

c)

primary consumers

d)

decomposers

72.
Example of a consumer
a)
worm
b)
bacteria
c)
mushroom
d)
hawk
73.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
74.
A tree is a ....
a)
composer
b)
decomposer
c)
producer
75.
Humans are considered...
a)
consumers
b)
decomposers
c)
producers
76.
Worms are considered...
a)
producer
b)
consumer
c)
decomposer
77.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
78.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
79.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
80.
An organism that gets energy from breaking down dead organisms, non-living material or waste
a)
producer
b)
consumer
c)
decomposer
81.
What is a carnivore?
a)
an animal that gets energy by eating other animals
b)
An animal that gets energy by eating only plants
c)
an animal that gets energy by eating both plants and animals
d)
an animal that makes its own energy through photosynthesis
82.
Which of the following examples describes how a consumer depends on a producer for food? 
a)
Milo drinks water from his water bowl
b)
A flower uses photsysnthesis to get it's food.
c)
A bunny eats grass .
83.
Does this picture show biodiversity?
a)
Yes
b)
No
84.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
85.
 Which biome is more likely to survive a change in the environment?
a)
High (rich) biodiversity
b)
Low (poor) biodiversity
86.
When an ecosystem is more diverse it has more sustainability.
a)
False
b)
True
87.
What is sustainability?
a)
the ability to be maintained at a certain rate or level.
b)
a bunch of animals
c)
a loss
d)
a win
88.
Does this picture have sustainability?
a)
Yes
b)
No
89.

Does this have high or low biodiversity?

a)

High

b)

Low

90.
Does this have sustainability?
a)
Yes
b)
No
91.
If biodiversity is high then sustainability is ____?
a)
High
b)
Low
92.
If biodiversity is low then sustainability is ____?
a)
High
b)
Low
93.

Anastayjia visited 3 different ecosystems to collect specimens. She visited a grassy area in a tundra and woody area in a Temperate deciduous forest. She collected 20 different types of species from the tundra and 98 different types of species from the forest. Which ecosystem is the MOST sustainable?

a)

Tundra

b)

Desert

c)

Temperate deciduous forest

d)

Rainforest

94.

What two factors would make biodiversity increase?

a)

Tornadoes and hurricanes

b)

Large amount of producers and water

c)

More predators and competition

d)

The water cycle and ocean warming

95.

What is true about sustainability?

a)

Having a small number of species increases biodiversity

b)

Sustainability is how organisms change over time

c)

Sustainability is how much rainfall and sunlight an ecosystem receives

d)

The more different types of species you have (biodiversity) the better an ecosystem can sustain itself

96.

Biodiversity means..

a)

The variety of life in an ecosystem

b)

How an ecosystem changes over time

c)

Differences among humans

d)

Diversity of a select few species in a deserted area

97.

A certain area of the Indian ocean is expected to dry up and become a desert over thousands of years. What will happen to the sustainability of this ocean?

a)

Sustainability would increase because the number of species would increase

b)

Sustainability would remain the same

c)

Sustainability would decrease because the number of species would decrease

d)

Not enough information is given

98.

Which of the following would cause biodiversity to DECREASE?

a)

Water

b)

Forest Fires

c)

Sunlight

d)

Producers

99.

What is the most important biotic factor in supporting an ecosystem?

a)

water

b)

sunlight

c)

herbivores

d)

producers

100.

What is false about biodiversity

a)

More biodiversity makes it least likely for a species to survive a disturbance such as a Tsunami

b)

More biodiversity allows species to survive a disturbance such as a hurricane

c)

As biodiversity increases sustainability increases

d)

Genetic biodiversity is what makes us look and act different

101.

A hurricane hit a tundra and a forest. A tundra is less biodiverse than the forest. Which biome would be impacted the most?

a)

The forest because it has more species and it wouldn't be able to sustain itself as well as the tundra

b)

They would be impacted the same

c)

The forest because it has more producers

d)

The tundra because it has less species and it wouldn't be able to sustain itself as well as the forest

102.

When biodiversity increases

a)

Sustainability decreases

b)

Sustainability remains the same

c)

Sustainability also increases

d)

Sustainability becomes greater by 2

103.

When biodiversity decreases

a)

Sustainability also decreases

b)

Sustainability remains the same

c)

Sustainability increases

d)

Sustainability is not impacted

104.

Biodiversity occurs in all except..

a)

Genes

b)

Abiotic factors

c)

Species

d)

Ecosystem

105.

The greater a habitat’s biodiversity, the greater will be that habitat’s

a)

sustainability over time

b)

consumption of energy in the form of sunlight

c)

temperature ranges across the seasons

d)

distance to the nearest water source.

106.

Which of the following most likely supports the most sustainable ecosystem?

a)

The habitat with the greatest number of predators

b)

The habitat with the greatest variety of living things

c)

The habitat with the warmest average temperature

d)

The habitat with the greatest number of consumers

107.

The ocean ecosystem has a high sustainability because of -

a)

strong, persistent currents

b)

predator/prey relationships

c)

the large variety of different organisms, producers, and water

d)

None of the above

108.

Biomes are mainly determined by _____ and ____.

a)

temperature

b)

weather

c)

precipitation

d)

soil

e)

rocks

109.

What do you notice about this climate graph?

a)

temperature is warm year round

b)

temperature is cold year round

c)

dry summers

d)

most rain in the winter

110.

What are some characteristics of deserts?

a)

lots of trees

b)

high average rainfall

c)

low average rainfall

d)

extreme temperature variations

e)

grasslands

111.

What are some characteristics of rainforests?

a)

lots of trees

b)

high year round temperature

c)

high amount of rainfall

d)

grasslands

e)

low year round temperature

112.

What are some characteristics of tundra?

a)

permafrost

b)

very cold, low average temperatures

c)

lots of trees

d)

small amount of plants

e)

high amount of rainfall

113.

What are some characteristics of a taiga/boreal forest?

a)

coniferous trees

b)

very cold

c)

very hot

114.

What are some characteristics of a temperate deciduous forest?

a)

leaves change color in the fall

b)

lots of trees

c)

hot year round

d)

low amount of rainfall

115.

What are some characteristics of a temperate grassland/prairie?

a)

lots of trees

b)

grassland

c)

flat

d)

high temperatures year round

116.

What are some characteristics of a tropical grassland/savanna?

a)

warm temperatures

b)

seasonal rainfall

c)

lots of trees

d)

grassland

e)

low average temperature

117.

This biome has hot summers, cold winters, diverse grasses, trees, and shrubs, and is common in central US.

a)

savanna

b)

temperate grassland

c)

temperate forest

d)

tundra

118.

Which biome consists of very low precipitation and can be hot or cold? 

a)

savanna

b)

tropical rainforest

c)

tundra

d)

desert

119.

Which biome consists of warm weather year-round, a dry season and a rainy season, and diverse trees, shrubs, and grasses?

a)

tropical rainforest

b)

temperate grassland

c)

savanna

d)

desert

120.

Which biome consists of lakes, rivers, and streams and only includes 3% of the Earth’s water?

a)

Marine open ocean

b)

Marine coastal

c)

Tundra

d)

Freshwater

121.

Which biome consists of long bitter winters, cool summers, and diverse coniferous trees?

a)

Taiga

b)

Tundra

c)

Temperate forest

d)

Grassland

122.

Which biome consists of grasses, shrubs, cold temperatures, and the permafrost?

a)

Taiga

b)

Tundra

c)

Temperate forest

d)

Temperate grasslands

123.

Which biome consists of salt water from land out to 600ft depth? 

a)

Marine open ocean

b)

marine coastal

c)

freshwater

d)

ocean

124.

Which biome consists of diverse deciduous trees, warm summers, cool winters, and can be found in the eastern US?

a)

Taiga

b)

Temperate forest

c)

Tropical rainforest

d)

Temperate grassland

125.

Which biome consists of salt water from 600ft and deeper? 

a)

Marine Coastal

b)

marine open ocean

c)

freshwater

d)

ocean

126.

Which biome is warm year-round, receives LOTS of rain, and is rich in. biodiversity?

a)

Temperate forest

b)

Temperate grassland

c)

Boreal Forest

d)

Tropical rainforest

127.
Which biome is the driest?
a)
Desert
b)
Tundra
c)
Taiga
d)
Rainforest
128.
Which biome has deciduous trees (which lose their leaves)?
a)
Temperate Forest
b)
Rainforest
c)
Grasslands
d)
Taiga
129.
Which biome has coniferous trees (which don't lose their leaves)?
a)
Taiga
b)
Temperate Forest
c)
Tundra
d)
Grasslands
130.
Which biome has wide-open fields of grass?
a)
Taiga
b)
Grasslands
c)
Temperate Forest
d)
Rainforest
131.
Which biome has 4 seasons?
a)
Taiga
b)
Tundra
c)
Grasslands
d)
Temperate Forest
132.
Which biome has the most variety of plants and animals?
a)
Temperate Forest
b)
Rainforest
c)
Tundra
d)
Grasslands
133.
In which 2 biomes can only plants/animals with adaptations survive?
a)
Taiga/Temperate Forest
b)
Grasslands/Desert
c)
Tundra/Desert
d)
Rainforest/Tundra
134.
Which biome is home to cacti, scorpions, coyotes, kangaroo rats, and lizards?
a)
Desert
b)
Grasslands
c)
Temperate Forest
d)
Taiga
135.
Which biome is home to lions, zebras, wildebeests, giraffes, and elephants?
a)
Grasslands
b)
Tundra
c)
Rainforest
d)
Temperate Forest
136.
Which biome do we live in?
a)
Grasslands
b)
Taiga
c)
Rainforest
d)
Temperate Forest
137.
Which biome produces over 50% of the world's oxygen?
a)
Rainforest
b)
Temperate Forest
c)
Grasslands
d)
Taiga
138.
Which biome is home to jaguars, anacondas, leopards, gorillas, and poisonous tree frogs?
a)
Grasslands
b)
Temperate Forest
c)
Rainforest
d)
Tundra
139.
Which biome could an animal who hibernates in the winter to survive the cold live in?
a)
Grasslands
b)
Taiga
c)
Desert
d)
Rainforest
140.
In which biome does an organism have to be able to conserve water to survive?
a)
Rainforest
b)
Taiga
c)
Desert
d)
Temperate Forest
141.
What term is given by scientists to the living parts of an ecosystem?
a)
Biotic Factors
b)
Abiotic Factors
c)
Community
d)
Population
142.
Abiotic factors are parts of the environment that are...
a)
Nonliving 
b)
Living
c)
Populations
d)
Vegetation
143.
The term "terrestrial" means
a)
land.
b)
water.
144.
One characteristic feature of the tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a permanently frozen subsoil. This characteristic is known as 
a)
winter frost
b)
Glaciation
c)
Permafrost
d)
Crystallization 
145.
What is the average, year-to-year conditions of weather in an area?
a)
Biome
b)
Air Mass
c)
Climate
d)
Precipitation
146.
We would NOT find this animal in the deciduous forest
a)
squirrel
b)
deer
c)
bear
d)
giraffe
147.

Look closely at the map of the watershed below. If water enters the watershed at the top of the mountain where the arrow is pointing, at which point will it stop draining?

a)

Point A

b)

Point B

c)

Point C

d)

Point D

148.

Where are you most likely to find a watershed?

a)

In a lake

b)

On a mountain top

c)

At the bottom of a valley

d)

Everywhere

149.

What definition BEST describes a watershed?

a)

An area where water infiltrates the soil

b)

An area where aquatic plants and animals thrive

c)

An area where snow melts and changes into liquid water

d)

An area that collects precipitation and drains it to the lowest point

150.

The boundaries of a watershed are determined by ___________

a)

Elevation

b)

Soil type

c)

The amount of water that flows

d)

The kinds of organisms found in the area

151.

Which of the following human activities is LEAST likely to affect watersheds?

a)

Flying in an airplane

b)

Cutting down trees

c)

Fertilizing lawns

d)

Reading a book

152.

Which statement about water pollution is TRUE?

a)

Pollution only affects surface water.

b)

Pollution cannot be dissolved in water.

c)

Pollution affects both surface and groundwater.

d)

Pollution cannot travel through soil to groundwater.

153.

Which of the following models BEST represents how water flows in a watershed?

a)

A

b)

B

c)

C

d)

D

154.

Pollutants from a factory that enter the water in a watershed will have a negative effect on which of the following?

a)

Local pond life

b)

Rainfall rates

c)

Direction of river flow

d)

Available space for crops

155.

A neighborhood in a small Texas town had to be evacuated because the houses were sinking due to a problem in the aquifer. What is the most likely cause of this problem?

a)

Heavy rains caused oversaturation of soil foundations.

b)

Overbuilding in the area polluted the ground water.

c)

Runoff from fertilized land created a dead zone.

d)

Excessive removal of water weakened the ground.

156.

The use of pesticides and fertilizers is carefully monitored because of the effect they can have on the environment. Which of the following is a possible negative effect of the use of these chemical on the environment?

a)

These chemicals are expensive to produce.

b)

Runoff carries these chemicals into lakes and streams.

c)

Storage space for these chemicals is limited.

d)

Theses chemicals cannot be purchased in large bulk.

157.

Aquifer is an area of permeable rock on the land surface that holds groundwater.

a)

True

b)

False

158.

All water below the surface of land is called__________.

a)

water table

b)

watershed

c)

groundwater

d)

runoff

159.

The process where water or irrigation runs over land and seeps into the ground, or flows into streams or oceans.

a)

water cycle

b)

runoff

c)

precipitation

d)

evaporation

160.

The picture illustrates nonpoint source pollution.

a)

True

b)

False

161.

Examine the picture provided. Which of the following is true about saturation zone?

a)

It is above the surface water.

b)

It is above the water table

c)

It is a form of precipitation.

d)

It is below the water table.

162.

Which of the following best describes water table?

a)

It is in unsaturated zone.

b)

It is a surface water

c)

it is the top of saturation zone.

d)

It is an aquifer.

163.

The picture shown is an example of______

a)

runoff

b)

point source water pollution

c)

nonpoint source water pollution

d)

ground water

164.

Rapid growth of algae in a pond is often the result of -

a)

loss of habitat due to commercial building.

b)

flooding that causes water levels to rise.

c)

excess nutrients from fertilizer runoff.

d)

clogged river tributaries entering a lake.

165.

Groundwater is recharged when rainwater infiltrates into the ground.

a)

True

b)

False

166.

Runoffs recharge lakes and streams.

a)

True

b)

False

167.

In the diagram, letter A best represents:

a)

Runoff

b)

Watershed

c)

Water Table

d)

Confining Layer

168.

All bodies of fresh water, salt water, ice, and snow that are found above ground

a)

Groundwater

b)

Surface water

c)

Runoff

d)

Swimming pool

169.
What do you call the land that water flows across, under, and through on its way to a body of water?
a)
Tributary
b)
River system
c)
Headwaters
d)
Watershed
170.

Only _____ of Earth’s water can be classified as fresh water.

a)

3 %

b)

25 %

c)

32 %

d)

76 %

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