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Semester 1 Exam Review 6th Period

Total questions: 136

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

Maria did an experiment to find out whether tulips grow faster under fluorescent lighting or incandescent lighting. Under fluorescent lighting, Maria's plants grew 1.5 cm taller in two months. She gave her notes to Alex, who did the same experiments with similar results. Which term describes Alex's experiment?

a)

plagiarism

b)

replication

c)

pseudo science

d)

repitition

2.

What type of investigation does this represent?

a)

model

b)

experimentation

c)

observation

d)

recording

3.

What is the outcome (DEPENDENT) variable?

a)

plant height

b)

time in days

c)

sunflower

d)

daisy

4.

Identifying the Test (Independent) Variable and Outcome (Dependent) Variable in an experiment will help you interpret results. What is the difference between the Test (Independent) and the Outcome (Dependent) Variable in an experiment?

a)

Test Variable changes due to the outcome variable, the Outcome Variable is what is measured in an experiment.

b)

Test Variable changes due to the outcome variable, the Outcome Variable is what stays the same in an experiment.

c)

The Test Variable is what we change in an experiment, and the Outcome Variable is what changes as a result of that change.

d)

The Test Variable is what is measured in an experiment, and the Outcome Variable is what changes as a result of that change.

5.

Fred and Barney were given an assignment to go to a school basketball game and write down everything they each saw, heard, smelled, and touched. Afterwards the two students were to compare and contrast their findings and write up a summary of their combined data. In this case when they wrote down what they saw, heard, smelled and felt was considered?

a)

They were creating a hypothesis

b)

They were making inferences

c)

They were writing down their observations

d)

None of the above

6.

Cindy placed three beehives with the same mass into separate (but identical) glass containers. Hive A was kept at 10 degrees Celsius (˚C), Hive B was kept at 29 ˚C, and Hive C was kept at 37 ˚C. For the next month she measured the amount of honey each hive produced. Hive B produced more than the other two hives.

What is the Manipulated (INDEPENDENT) variable in her experiment?

a)

The temperature of each hive

b)

The number of hives

c)

The mass of each hive

d)

The amount of honey produced

7.

What is the best definition of the term "theory", as it’s used in science?

a)

What is the best definition of the term "theory", as it’s used in science?

b)

It is well tested set of ideas that explains events that occur in nature.

c)

A theory is based on laws that can be proven true.

d)

It is a hypothesis that has been confirmed

8.

What is the difference between a scientific theory and a scientific law?

a)

A theory is a well-tested range of representations and a law is a concrete physical representation.

b)

A theory is a well-tested range of observations of why something works and a law is a well-tested concrete explanation how things work

c)

A theory is a well-tested range of observations of how something works and a law is a well-tested concrete explanation of why things work

d)

A theory is a hypothesis that is yet to be proven false and a law is a hypothesis that will always be true.

9.

A prevailing theory about heredity is challenged by newly discovered information from a few experiments. As a result, what might happen to the scientific knowledge about heredity?

a)

A new theory will immediately be established.

b)

All that is known about heredity will be erased

c)

Nothing because scientific knowledge cannot change once it is established.

d)

Scientific knowledge may change and grow over time.

10.

The picture below shows a microscopic view of cork tissue, which Robert Hooke used to identify the first cell in 1665. Today, it is known that this discovery helped lead to the cell theory. What happened for the cell theory to be created?

a)

Hooke formed an explanation that was so convincing that the scientific community easily agreed that he was correct and made the cell theory.

b)

The scientific community elected the best cell biologist to perform one more experiment on Hooke's work, and he created the cell theory.

c)

The scientific community took Hooke to a court of law, and after many arguments they eventually ruled in favor of the cell theory.

d)

Many scientists performed studies that tested and built upon Hooke's work, eventually forming a unified understanding of cells.

11.

Scientists need to know how gravity acts on a space shuttle so they can put the space shuttle into orbit. They use an equation that describes how gravity relates to the mass of two objects and the distance between the two objects. Which term describes this equation?

a)

observation

b)

model

c)

scientific law

d)

scientific theory

12.

Which of the following describes a scientific law?

a)

Motorists may not travel faster than the posted speed limit.

b)

The net force on a vehicle is equal to its mass times its acceleration.

c)

Drivers must have a valid driver's license to operate a motor vehicle.

d)

Vehicles require one car length per 10 miles per hour of speed to safely stop.

13.

Hannah observes that the sun always seems to rise in the east. She talks with others and finds that everyone has the same observation. Which statement is a scientific law?

a)

The sun rises in the east.

b)

Why does the sun rise in the east?

c)

The sun appears in the east because of Earth’s rotation pattern.

d)

If the sun appears in the east, then I am in the Western Hemisphere

14.

Which phrase defines a scientific theory?

a)

A well supported explanation

b)

An untested idea

c)

An educated guess

d)

An accepted description

15.

Scientists conduct many types of scientific investigations. Their efforts often include fieldwork, surveys, models, and experiments. Which statement about scientific investigations is true?

a)

Their primary purpose is to compare or describe the world.

b)

They rarely involve the collection of data under controlled conditions.

c)

They follow exactly the same steps because there is only one scientific method.

d)

They include multiple trials to increase the consistency of the data that are collected.

16.

A constant is:

a)

something that is changed on purpose

b)

something that scientists do not yet understand

c)

something that stays the same

d)

something that changes because of something else

17.

A student hypothesized that the amount of sunlight a sunflower plant receives determines the number of sunflower seeds the plant produces. In her experiment, the number of seeds produces is the______

a)

Test (independent) variable

b)

Outcome (dependent) Variable

c)

Control Variable

d)

Control group

18.

Based on the data shown in the graph, which of the statements below mostly closely fits the data.

a)

Students performed worse on test #2 than they did test #9

b)

Students performed better on test#2 than they did on test#9

c)

Students performed better on test#1 than they did on test#7

d)

all of the above

19.

A scientist wanted to know more about these blue birds at a beach. He goes to the beach and he writes down everything he sees the birds doing and all the sounds they make. This is an example of which scientific tool?

a)

observation

b)

analysis

c)

hypothesis testing

d)

replication

20.

Read the law of conservation of energy in the box below.

The total energy of an isolated system

is constant; energy may be changed from one form to another, but may not be

created nor destroyed.

Why is this a scientific law?

a)

because it explains a concept in science, and any topic in science can be turned into a scientific law

b)

because it describes a specific relationship under given conditions in the natural world

c)

because it can be controlled by human actions

d)

because it describes energy and how it transfers

21.
Which of the following is a scientific observation? 
a)
The potato is brown in color.
b)
The potato tastes the best.
c)
The potato may cause allergies.
d)
The potato smells funny. 
22.
What is another word for hypothesis?
a)
evidence
b)
graph
c)
investigation
d)
prediction
23.
A scientist is collecting data on the number of times a cricket chips per minute. What sense is the scientist most likely using to make observations?
a)
hearing
b)
smell
c)
sight
d)
touch
24.
Justin blows his nose, but mucus seems to leak through the tissue.  He decides to test which tissue holds up the best while sneezing.  What is the independent variable?
a)
sneezing
b)
Justin
c)
amount of tissue
d)
type of tissue
25.
Mr. McNeice wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses.  What is the dependent variable?
a)
type of music
b)
heart rate
c)
how long they listend to music
d)
Mr. McNeice
26.
Which question can best be investigated by a scientist?
a)
Should I buy a red shirt or a green shirt?
b)
Does chocolate milk or plain milk taste better?
c)
Does a plant need sunlight to grow?
d)
Which feels softer, cat fur or dog fur?
27.
The container is filled to the 350 mL mark with water. 
a)
observation
b)
inference
c)
problem
d)
hypothesis
28.
Why should an experiment be repeated?
a)
to form a hypothesis
b)
to reduce the chance of error
c)
to change controls
d)
to identify the problem
29.
This is the outcome of the experiment. We get data and results from this.
a)
Independent Variable
b)
Dependent Variable
c)
Control
d)
Constant
30.
How many independent variables should be tested at a time in a scientific investigation?
a)
none
b)
one
c)
two
d)
three
31.
Which is the dependent variable in Amelia's experiment?
a)
the number of bean plants in each group 
b)
the amount of water given daily to each plant 
c)
the height of each bean plant 
d)
the amount of fertilizer given to each group of bean plants
32.
The variable that is changed on purpose is: 
a)
Control
b)
Dependent
c)
Independent
d)
Outcome
33.
The variable in the experiment that is the outcome that you measure is called:
a)
Control
b)
Dependent
c)
Independent
d)
Hypothesis
34.
What is an inference? 
a)
Just a guess.
b)
A statement based off of your observations. 
c)
The same as an observation. 
d)
Examples of something. 
35.
When experimenting with the growth of a plant, a scientist uses three plants, two different fertilizers, equal light, and equal water. What type of variable is the water?
a)
Dependent
b)
Independent
c)
Control
d)
Outcome
36.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure clapping/applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the dependent variable?
a)
The Song
b)
The Reed
c)
The Applause
d)
The clarinet
37.
What is the outermost layer of earth?
a)
inner core
b)
outer core
c)
mantle
d)
crust
38.
Which layer is made of the most solid rock?
a)
inner core
b)
outer core
c)
mantle
d)
crust
39.
Which layer is made of solid iron & nickel?
a)
inner core
b)
outer core
c)
mantle
d)
crust
40.
What is the outer core made of?
a)
solid rock
b)
solid metal
c)
melted rock
d)
melted metal
41.
Which layer has the hottest temperatures?
a)
inner core
b)
outer core
c)
mantle
d)
crust
42.
Which layer is the least dense?
a)
inner core
b)
outer core
c)
mantle
d)
crust
43.
Which statement is true about oceanic crust?
a)
It is made of melted rock.
b)
It is the thinner than continental crust.
c)
It is thicker than continental crust.
d)
It is made of liquid metal.
44.

Which word best describes the lithosphere?

a)

liquid

b)

rigid

c)

bendable

d)

metal

45.

Which compositional layer is represented by the yellow layer?

a)

inner core

b)

outer core

c)

mantle

d)

crust

46.
Out of all the layers, which one would be the easiest for us to drill through?
a)
inner core
b)
outer core
c)
mantle
d)
crust
47.
Which statement is correct?
a)
As you move up through the layers, the pressure increases.
b)
As you move down through the layers pressure increases.
c)
As you move down through the layers, pressure decreases.
d)
As you move up down through the layers, pressure remains the same.
48.
What happens to temperature as you move down through the layers?
a)
it remains the same
b)
it increases then decreases
c)
it increases
d)
it decreases
49.
Which layer of the Earth is the only liquid layer?
a)
Outer Core
b)
Inner Core
c)
Mantle
d)
Lithosphere
50.
What is the hottest layer?
a)
Crust
b)
Mantle
c)
Core
51.
What is the correct order of Earth's layer starting from the surface?
a)
Crust, mantle, outer core, inner core
b)
outer core, inner core, crust, mantle
c)
crust, outer core, inner core, mantle
d)
mantle, outer core, inner core, crust
52.
Where is the Earth's crust the thickest?
a)
Oceans
b)
Equator
c)
Mountains
d)
North and South Poles
53.
Which layer is the OUTER CORE?
a)
1
b)
2
c)
3
d)
4
54.
Which layer is the MANTLE?
a)
1
b)
2
c)
3
d)
4
55.

Which letter in the diagram identifies the layer of Earth made up of solid nickel and iron?

a)

layer A

b)

layer B

c)

layer C

d)

layer D

56.

Sally is researching the differences that exist in each layer of the Earth. Which of the following best describes Earth's crust?

a)

Solid, rocky

b)

Liquid, metallic

c)

Semisolid, convecting

d)

Dense, extremely hot

57.

Which of the following is true regarding the composition of the lithosphere?

a)

The lithosphere is mostly liquid, with some medium-density materials, such as silicon.

b)

The lithosphere is more plastic and flows slowly compared to the solid crust of Earth.

c)

The lithosphere includes the core and the lower portion of the mantle.

d)

The lithosphere includes the crust and the uppermost portion of the mantle, which is sold and rigid.

58.

The layers of Earth can be classified by their thickness, composition, and state. Which of Earth's layers is best described as a molten state of medium density made of mostly silicon and oxygen?

a)

crust

b)

outer core

c)

mantle

d)

inner core

59.

What letter in the diagram identifies the layer that is composed of moving continental and oceanic plates?

a)

layer A

b)

layer B

c)

layer C

d)

layer D

60.
Identify the letter in the diagram.  Identify letter F
a)
Lithosphere
b)
Asthenosphere
c)
Mantle
d)
Outer Core
61.
Identify the letter in the diagram.  Identify letter B
a)
Crust
b)
Convection Current
c)
Inner Core
d)
Outer Core 
62.
The driving force of the tectonic plates are convection currents, where can these be found?
a)
inner core
inner core
b)
crust
c)
mantle
d)
outer core
63.
Used to determine whether an object is older or younger than other objects
a)
Superposition
b)
Relative Dating
c)
Fossil
d)
Unconformity
64.
States that younger rocks lie above older rocks if the layers have not been disturbed
a)
Law of crosscutting
b)
Law of superposition
c)
Relative Dating
d)
Unconformity
65.
A break in the geologic record that is made when rock layers are eroded over a long period of time
a)
Law of Superposition
b)
Law of Crosscutting
c)
Relative Dating
d)
Unconformity
66.
What is the law of superposition?
a)
The age of sedimentary rock not found in the original layers.
b)
Metamorphic rock is younger than the nearby igneous rock.
c)
Sedimentary rock in it's original position is older than layers above it.
d)
Metamorphic rock is older because it was deposited to nearby sedimentary rock.
67.
How does the law of crosscutting explain the age of a fault?
a)
The fault is younger than the rocks above it.
b)
The fault is younger than the rocks it cuts through.
c)
The fault is older than the rocks above it.
d)
The fault is older than the rocks it cuts through.
68.
Analyze the seashell found in the white layer.  Which statement is true of the rock layer that contains this fossil?
a)
It could also contain a fossil from the bottom layer.
b)
It is older than the layers below it.
c)
It is younger than the layers above it.
d)
It is older than the layers above it.
69.
What are the relative ages of the features in order from oldest to youngest?
a)
Limestone, Basalt, Fault, Siltstone
b)
Siltstone, Fault, Basalt, Limestone
c)
Limestone, Fault, Basalt, Siltstone
d)
Limestone, Siltstone, Fault, Basalt
70.
Relative dating of rock layers tells us that the deeper we dig, _______.
a)
the younger the rocks get
b)
the smellier the rocks get
c)
the harder the rocks get
d)
the older the rocks get
71.
The Law of Superposition helps scientists to determine what?
a)
The absolute age of rock layers
b)
The age of fossils
c)
The relative age of rock layers
d)
the super powers of rocks
72.
According to the law of superposition, the oldest fossils are found 
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
73.
Gaps in rock layers caused by erosion are called
a)
law of superposition
b)
unconformities
c)
uniformitarianism
d)
relative dating
74.
Which property of fossils allows scientists to determine the relative ages of rock layers?
a)
Fossils form from the remains of living things
b)
Fossils can be analyzed to determine their exact ages
c)
Fossils show change over time as species evolve
d)
Fossils are usually found in sedimentary rock
75.
How do scientists use fossils to determine the relative ages of rock layers?
a)
by comparing all the fossils in one rock layer
b)
by comparing fossils in many different rock layers
c)
by determining the positions of fossils in many different rock layers
d)
by locating other areas of the world where the same fossils are found
76.
How does sedimentary rock usually form?
a)
Vertically
b)
Diagonally
c)
Folding
d)
Horizontally
77.
This rock was another type of rock that was heated and compressed over time. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
78.
This rock started as molten magma. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
79.
This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
80.
Cooling & crystalization produce
a)
igneous rocks
b)
metamorphic rocks
c)
sedimentary rocks
81.
The process when rocks break into smaller pieces due to exposure to natural elements is called
a)
erosion
b)
weathering
c)
sediments
82.

Which rock is formed form the cooling of volcanic ash on Earth's surface?

a)

intrusive igneous

b)

foliated metamorphic

c)

extrusive igneous

d)

organic sedimentary

83.

Rocks that form from colling magma inside Earth?

a)

Igneous intrusive

b)

Igneous extrusive

c)

Metamorphic foliated

d)

Metamorphic nonfoliated

84.
Sediment goes through _________________ to become sedimentary rock.
a)
heat and pressure
b)
compacting and cementing
c)
weathering and erosion
d)
melting and cooling
85.

Fossils are found in ____________ rocks.

a)

metamorphic

b)

magma

c)

igneous

d)

sedimentary

86.
An igneous rock containing large crystals is most likely a(n)
a)
Chemical Rock
b)
Foliated Rock
c)
Extrusive Rock
d)
Intrusive Rock
87.
When you watch a volcano erupt molten rock, you are seeing _____
a)
Lava
b)
Magma
c)
Mineral Crystals
d)
Igneous Rocks
88.
This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
89.
When sediments are pressed together tightly, this is called ____________.
a)
Compaction
b)
Cementation
c)
Weathering
d)
Erosion
90.
The movement of weathered material (sediment) is called?
a)
weathering
b)
erosion
c)
deposition
91.

Which of the following is an accurate description of the movement of the tectonic plates in the diagram?

a)

Plate A is sliding past plate B.

b)

Plate A and plate B are diverging.

c)

Plate A is denser than plate B, which results in subduction.

92.

What processes can be used to complete the diagram of the rock cycle?

a)

A. 1 = cooling, 2 = weathering and erosion, 3 = pressure

b)

B. 1 = weathering and erosion, 2 = pressure, 3 = cooling

c)

C. 1 = weathering and erosion, 2 = cooling, 3 = pressure

d)

D. 1 = weathering and erosion, 2 = weathering and erosion, 3 = weathering and erosion

93.

Why do metamorphic rocks rarely contain fossils?

a)

These rocks are formed underwater, and the water dissolves the fossils.

b)

The rock formation occurs from extremely hot magma deep inside the crust where organisms do not live.

c)

These rocks undergo extremely high pressure or temperature changes when formed, which would destroy fossils

d)

These rocks are usually formed from extremely hot magma or with severe lava explosions, which would destroy fossils.

94.

Which of the following is a true statement about the rock cycle?

a)

Heat, pressure, cooling, weathering, erosion, and deposition change rock

b)

The formation of rock within the cycle ends after metamorphic rocks form.

c)

Weathering occurs in igneous rocks but never in sedimentary or metamorphic

95.

A student used a magnifying lens to examine two different rocks. Which crystals most likely formed from molten material that cooled rapidly?

a)

crystals in rock 1, because large grains usually form near Earth's surface

b)

Crystals in rock 1, because large grains usually form deep within Earth

c)

crystals in rock 2, because small grains usually form near Earth's surface

d)

crystals in rock 2, because small grains usually form deep within Earth

96.

What must happen to a sedimentary rock in order for it to change into an igneous rock?

a)

It must be weathered and eroded.

b)

It must melt, then cool and harden.

c)

It must become cemented to other rocks.

d)

It must be put under pressure until new minerals form in it

97.

Which of the following is NOT true about the role tectonic forces play in the rock cycle?

a)

When plates slide over and under each other, the heat and pressure form igneous rocks.

b)

When plates pull apart, rocks melt, and magma forms igneous rocks.

c)

When plates push together, rocks are buried and form metamorphic rocks.

d)

When rocks push upward and form mountains, the erosion of the mountains can produce sediment.

98.

Which statement correctly describes the rock cycle?

a)

Igneous rock can only form by heat and pressure.

b)

Metamorphic rock can only form by crystallization.

c)

Magma can only form by compaction and cementation.

d)

Sediment can only form by weathering, erosion, and deposition

99.

Which of the following processes is most necessary to form sedimentary rocks? 

a)

cooling

b)

subduction

c)

deposition

d)

metamorphism

100.

Shale is a rock formed when silt is compacted together. When shale is buried and experiences heat and pressure, it becomes slate. What type of change occurs in this process?

a)

Sedimentary rock becomes metamorphic rock

b)

Metamorphic rock becomes sedimentary rock.

c)

Metamorphic rock becomes new metamorphic rock

d)

Sedimentary rock becomes new sedimentary rock.

101.

Which of these statements about the rock cycle is true?

a)

Each type of rock can change into any other type of rock through the rock cycle.

b)

The rock cycle can change the texture but not the composition of rocks.

c)

High temperatures are needed at each stage of the rock cycle

d)

All stages of the rock cycle occur beneath Earth's surface.

102.

Granite is a rock formed from the cooling of magma. When granite is exposed to elements such as wind and water, it weathers and erodes and the particles are deposited. Pressure causes these and other particles to form sandstone at Earth's surface. What type of change occurs in this process?

a)

Sedimentary rock becomes igneous rock

b)

Igneous rock becomes sedimentary rock

c)

Sedimentary rock becomes new sedimentary rock

d)

Igneous rock becomes new igneous rock.

103.

Which process can change metamorphic rock into new metamorphic rock?

a)

The metamorphic rock undergoes cementation

b)

The metamorphic rock melts and cools at Earth's surface

c)

The metamorphic rock experiences increased heat and pressure

104.

A certain rock formed on Earth's surface. Which of these conclusions can be drawn about the rock?

a)

A. It must be an igneous rock

b)

It cannot be an igneous rock.

c)

It must be a metamorphic rock

d)

It cannot be a metamorphic rock.

105.

Plate Tectonics supports the idea that all continents were once fused together called _____________ .

a)

The rock cycle

b)

Supercontinent

c)

The crust

d)

Pangea

106.

______________________ continually adds materials to the ocean floor creating ocean floor.

a)

Sea-floor spreading

b)

Ocean trenches

c)

Divergent mid-ocean ridges

d)

Convergent mid-ocean ridges

107.

This plate boundary moves land apart, creating an ocean trench or a valley on land : ________________________

a)

Divergent boundary

b)

Transform boundary

c)

Convergent boundary

d)

Mid-Ocean voundary

108.

Boundary between two colliding plates, often associated with mountain building, ocean trenches and volcanic islands

a)

plate boundary

b)

magma

c)

divergent boundary

d)

convergent boundary

109.

A deep crack in the Earth's surface associated with divergent boundary between two continental plates

a)

lava

b)

rift

c)

ridge

d)

trench

110.

proposed by Alfred Wegener, that the continents were once joined together and have since drifted apart

a)

theory of plate tectonics

b)

tectonic plates

c)

plate boundary

d)

theory of continental drift

111.

Example of divergent boundary between two oceanic plates.

a)

Mid-Atlantic Ridge (Atlantic Ocean)

b)

Andes Mountains (S. America)

c)

East Africa Rift Valley

d)

None of the above

112.

New oceanic crust (sea floor) is created at this boundary.

a)

Divergent Oceanic

b)

Divergent Continental

c)

Convergent Oceanic

d)

Transform

113.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
submergent
114.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
subducting
115.

In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?

a)

The strong ocean currents are undermining both areas causing earthquakes.

b)

Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.

c)

Both areas are subjected to strong ocean wind and waves that causes earthquakes.

d)

Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.

116.

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

a)

the oceanic crust is melting.

b)

the denser ceanic crust is subducting under the less dense oceanic crust

c)

volcanic islands are forming.

d)

the tectonic plates are moving away from each other.

117.

What is the source of energy that drives plate movement?

a)

the subducton of the sea floor

b)

the different densities of the oceanic and crustal plates

c)

convection currents in the asthenosphere

d)

the friction force between the plates that move past each other

118.

Where would sea floor spreading most likely occur?

a)

At convergent boundaries (oceanic vs. oceanic)

b)

At convergent boundaries (oceanic vs. continental)

c)

At divergent plate boundaries (oceanic vs. oceanic)

d)

At transform plate boundaries

119.

Continental plates are ______ dense and ________ than ocean plates.

a)

more; thinner

b)

more; thicker

c)

less; thinner

d)

less; thicker

120.

Ocean plates are _______ dense and _______ than continental plates

a)

less; thinner

b)

more; thinner

c)

more; thicker

d)

more; thicker

121.
What does conserving resources mean?
a)
Use as much of the resources as you can
b)
Only use the resources at school
c)
Protecting the resource so it does not run out
122.
What is Deforestation?
a)
A forest in which there are too many deers.
b)
A forest party where deers hang out
c)
The adding of trees in a forest.
d)
The clearing of trees; transforming of a forest into cleared land.
123.
This picture shows people walking through a highly-polluted city in China. From what type of pollution are they protecting themselves based on what they are wearing?

a)
air pollution
b)
water pollution
c)
land pollution
d)
noise pollution
124.

According to the graph, what material’s recycling would reduce the largest portion of America’s trash?

a)

Metals

b)

paper

c)

plastics

d)

Yard trimmings

125.

What is global warming

a)

the normal temperature fluctuations of Earth's climate cycle

b)

the melting of the polar ice caps

c)

the trend of increasing temperatures on Earth

d)

the changes in Earth's biosphere that affect the atmosphere

126.

1. What is one of the greatest threats to biodiversity on Earth?

a)

habitat destruction

b)

loss of drinking water

c)

decrease in food supply

d)

pollution

127.
Which human activity would most likely deplete nonrenewable resources?
a)
use of natural enemies to eliminate insect pests
b)
development of wildlife refuges 
c)
governmental restriction of industrial pollution 
d)
increased use of fossil fuels
128.
Many common products, such as wooden furniture, paper, and books, are made from trees. Which of the following is a likely consequence of humans cutting down a forest in order to make use of the natural resources there? 
a)
the decrease of chemical runoff into the oceans
b)
increased acid rain
c)
the increase of light pollution in cities
d)
the destruction of habitats
129.
Human activities that degrade ecosystems result in a loss of diversity of the living and nonliving environment.  Two ways in which humans frequently harm ecosystems and affect other organisms is through land use and pollution.

How does land use cause a reduction in biodiversity? 
a)
It decreases the space and resources available to certain species
b)
It causes herbivores to become carnivorous
c)
It provides a more hospitable living environment
d)
It causes all the natural Earth cycles to stop
130.
The best difference between point-source and non-point source pollution is ...
a)
Point-source come from one site; non-point comes from many sites
b)
Point-source comes from pipes; non-point comes from runoff
131.
What can humans do to reduce the effects of acid rain?
a)
Develop Alternate Energy Sources (Solar Power, Wind Energy)
b)
Use Less Energy
c)
Stop Burning Fossil Fuels
d)
All of the Answers are Correct
132.
CFC's cause harm to our 
a)
Troposphere
b)
Inversion Layer
c)
Ozone Layer
d)
Carbon Dioxide
133.
These are two ways people can reduce air pollution.
a)
Drive vehicles that get low gas mileage / Burn trash at home
b)
Burn less fossil fuels / walk and ride bikes
c)
Create major forest fires / Use CFC's
d)
Burn styrofoam at landfills / Use more chlorine
134.
Which human activity would be most likely to have a negative impact on the environment?
a)
Planting trees to control soil erosion
b)
Limiting the use of chemicals that kill weeds.
c)
Stopping the draining of swamps.
d)
Burning coal and oil to generate electric power.
135.
The gradual increase in the temperature of the atmosphere is known as _____.
a)
drought
b)
point source
c)
global warming
d)
heat
136.
Coal, oil and gas are examples of
a)
Shell Fuels
b)
Bone fuels
c)
Fossil fuels
d)
Sea fulels

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