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Worksheets

7th grade content review

Total questions: 179

Worksheet time: 3hrs 47mins

Name
Class
Date
1.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
2.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
3.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave 
4.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
5.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
6.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
7.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
8.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
9.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
10.
regular disturbances that carry energy through matter or space
a)
crest
b)
energy
c)
wave
d)
trough
11.
A wave carries...?
a)
energy only
b)
matter only
c)
energy and matter
d)
neither
12.
A compressional wave is another name for a 
a)
longitudinal wave
b)
electromagnetic wave
c)
radio wave
d)
hair wave
13.
In a longitudinal wave, the particles move...?
a)
back and forth
b)
up and down
c)
not at all
d)
at a 90 degree angle
14.
The units for frequency are measured in _____________.
a)
hertz
b)
seconds
c)
m/s
d)
grams
15.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
16.
Waves that require a medium are called 
a)
mechanical waves
b)
transverse waves
c)
light waves
d)
gamma rays
17.
What kind of wave moves at right angles to the direction of the wave?
a)
compressional waves
b)
mechanical waves
c)
transverse waves
d)
ultraviolet rays
18.

What do we call the part of a compressional wave that is when the waves are squeezed together?

a)

compression

b)

rarefaction

c)

crest

d)

trough

19.

What do we call the part of a compressional wave that is spread a part?

a)

compression

b)

rarefaction

c)

crest

d)

trough

20.

What property of this wave is represented by the letter "A"

a)

amplitude

b)

crest

c)

trough

d)

wavelength

21.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
22.
Which wave has a greater frequency?
a)
A
b)
B
23.

Light is a type of electromagnetic radiation that is visible to the eye.

a)

True

b)

False

24.

Light travels much faster than

(a)  

25.

Which of the following is an example of light traveling faster than sound?

a)

Lightning

b)

Fireworks

c)

Thunder

d)

None of the above

26.

Why are we able to see things?

4 lines
27.

A ______ object is one that produces light.

a)

luminous

b)

non-luminous

c)

transparent

28.

A non-luminous object is one that ______ light.

a)

produces

b)

destroys

c)

reflects

29.

Which of the following is NOT a luminous object?

a)

stars

b)

flashlight

c)

candle

d)

moon

30.

Which of the following options is a non-luminous object?

a)

a flashlight

b)

a planet

c)

an electric bulb

d)

the sun

31.

A shadow is a _____ area on a bright surface.

a)

light

b)

dim

c)

dark

32.

A shadow is caused by something blocking the source of a light.

a)

True

b)

False

33.

List one luminous object and one non-luminous object seen or used by people on a regular basis.

4 lines
34.

In a heliocentric system, Earth revolves around

a)

Mars.

b)

the stars.

c)

the moon.

d)

the sun.

35.

Which is a correct list of the planets in order of increasing distance from the sun?

a)

Mercury, Venus, Mars, Earth, Jupiter, Saturn, Uranus, Neptune

b)

Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury

c)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

d)

Neptune, Mars, Earth, Uranus, Saturn, Jupiter, Venus, Mercury

36.

How are mass and weight different?

a)

Mass depends on the location of an object; weight measures the effects of gravity.

b)

Mass measures the effects of gravity; weight measures the amount of matter in an object.

c)

Mass measures the amount of matter in an object; weight measures the effects of gravity.

d)

Mass depends on the location of an object; weight measures the amount of matter in an object.

37.

What is the tendency of an object to resist a change in motion?

a)

Weight

b)

Inertia

c)

Gravity

d)

Orbital velocity

38.

What do the inner planets have in common?

a)

They are small and rocky; none have an atmosphere.

b)

They are small and rocky; most have atmospheres.

c)

They are large and rocky; none have an atmosphere.

d)

They are large and rocky; most have atmospheres.

39.

Venus and Earth are much alike in terms of

a)

their size and density.

b)

their rates of rotation.

c)

their atmospheres.

d)

their direction of rotation.

40.

What do the four outer planets have in common?

a)

They are about the same size as Earth and are made mainly of hydrogen and helium.

b)

They are much larger than Earth and are made mainly of iron.

c)

They are about the same size as Earth and are made mainly of iron.

d)

They are much larger than Earth and are made mainly of hydrogen and helium.

41.

Uranus is different from most other planets because it

a)

is the farthest from the sun.

b)

is mostly nitrogen and helium.

c)

rotates on its side.

d)

has the most moons.

42.

Neptune is very similar in size and color to

a)

Jupiter.

b)

Saturn.

c)

Uranus.

d)

Earth.

43.

The Viking landers sent back pictures of the reddish-colored, barren, rocky surface of

a)

Mercury

b)

Jupiter

c)

Uranus

d)

Mars

44.

Water is found as a solid, liquid, and gas on __________.

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

45.

_________ has the most complex ring system in the solar system.

a)

Neptune

b)

Saturn

c)

Uranus

d)

Jupiter

46.

The density of ___________ is so low that the entire planet could float in water.

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

47.

Nicolaus Copernicus and Galileo Galilei were both astronomers that developed models of the solar system. How are the Copernican and Galilean models of the solar system alike?

a)

Both have moons that orbit different planets.

b)

Both have Earth at the center of the solar system.

c)

Both have the sun at the center of the solar system.

d)

Both have planets with orbits that are shaped like ellipses.

48.

What is the relationship between a planet's distance from the sun and the length of its year?

a)

The closer the planet is to the sun, the longer its year.

b)

The farther the planet is from the sun, the longer its year.

c)

A year on each inner planet is the same length; it is shorter than a year on an outer planet.

d)

A year on each outer planet is the same length; it is shorter than a year on an inner planet.

49.

Which two factors keep a planet in orbit around the sun?

a)

Mass and distance

b)

Gravity and weight

c)

Inertia and gravity

d)

Rotation and revolution

50.

Which inner planet has the thickest atmosphere?

a)

Earth

b)

Mars

c)

Mercury

d)

Venus

51.

Aside from Earth, which inner planet once had liquid water on its surface?

a)

Mercury

b)

Europa

c)

Venus

d)

Mars

52.

Which is the smallest terrestrial planet?

a)

Mars

b)

Mercury

c)

Venus

d)

Earth

53.

Saturn’s rings are made up mostly of

a)

nitrogen and helium.

b)

ice and water vapor.

c)

volcanic dust particles.

d)

chunks of ice and rock.

54.

What is distinctive about Jupiter?

a)

Its axis of rotation is tilted 90 degrees.

b)

It is smaller and denser than the other outer planets.

c)

It is the planet with the most spectacular rings.

d)

It is the largest and most massive planet.

55.

Solar energy trapped by gases in Venus’ atmosphere causes ___________.

a)

clouds to form

b)

its slow rotation

c)

the greenhouse effect

d)

a cooling effect

56.

The Great Red Spot is a huge storm of swirling gas that is found on __________.

a)

Neptune

b)

Jupiter

c)

Saturn

d)

Uranus

57.

________ has dark-colored storms in its atmosphere.

a)

Neptune

b)

Uranus

c)

Jupiter

d)

Saturn

58.

How does the distance between a planet and the sun affect their gravitational pull on one another?

a)

Planets closer to the sun experience less gravitational pull.

b)

Planets closer to the sun experience more gravitational pull.

c)

There is no difference in gravitational pull.

d)

The gravitational pull changes from year to year.

59.

What is located where it says "Area" in this picture?

a)

comets

b)

meteoroids

c)

the asteroid belt

d)

dwarf planets

60.

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

a)

Evaporation, Condensation, Precipitation

b)

Precipitation, Condensation, Evaporation

c)

Condensation, Evaporation, Precipitation

d)

Evaporation, Precipitation, Condensation

61.

What would happen if the Sun is removed from the water cycle?

a)

The water cycle would not include precipitation but would continue with groundwater flow.

b)

The water cycle would no longer occur because the Sun provides the energy for evaporation and transpiration.

c)

The water cycle would no longer occur because the Sun provides energy for the formation of clouds.

d)

The water cycle would not include evaporation and transpiration but would continue with condensation.

62.

What is another name or synonym for the water cycle?

a)

Geologic cycle

b)

Hydrologic cycle

c)

Geosphere

d)

Carbon cycle

63.

What is the energy source that drives the water cycle?

a)

The moon T

b)

The heat from our home in the winter all around the world

c)

The sun

d)

he heat generated solely from the core of the earth

64.

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. ____________________

a)

Evaporation

b)

Convection

c)

Precipitation

d)

Transpiration

65.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
66.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
67.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation
68.
What is it called when WATER is FORMED from an LIQUID to a WATER VAPOR Oor an [GAS]?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
69.
What is the process during which water cools and turns from a gas to a liquid?
a)
Codensation
b)
Runoff
c)
Precipitation
d)
Evaporation
70.
The ________ is the driving force of the earth's surface.
a)
sun
b)
moon 
c)
stars
71.
True or False: Water droplets bond together with dust particles to form clouds during condensation.
a)
True
b)
False
72.

How does cellular respiration contribute to the process of evaporation?

a)

When organisms perform cellular respiration, they exhale water vapor, which contributes to evaporation.

b)

When organisms perform cellular respiration, they inhale water vapor, which contributes to evaporation.

c)

When organisms perform cellular respiration, they exhale carbon dioxide, which contributes to evaporation.

d)

When organisms perform cellular respiration, they inhale oxygen, which contributes to evaporation.

73.

Precipitation might contribute to the addition of pollutants to rivers, lakes, and oceans because...

a)

it carries pollutants from the atmosphere into bodies of water

b)

it collects any pollutants that are in or on the ground in the water supply

74.

Runoff might contribute to the addition of pollutants to rivers, lakes, and oceans because...

a)

it carries pollutants from the atmosphere into bodies of water

b)

it collects any pollutants that are in or on the ground in the water supply

75.

Which of the processes associated with the water cycle might be responsible for helping to clean or filter the water? (Select TWO answers)

a)

Infiltration (also called percolation)

b)

Transpiration

c)

Precipitation

d)

Runoff

76.
Freshwater that is stored in the form of snow and ice.
a)
Frozen Water
b)
Aquifer
c)
Atmosphere
d)
Snowmelt
77.
The flow of excess water on Earth’s surface due to too much meltwater or stormwater. 
a)
Surface runoff
b)
Infiltration
c)
Water Cycle
d)
Glacier
78.
The process where plants absorb water through the roots and then give off water vapor through their leaves.
a)
Transpiration
b)
Respiration
c)
Oxygen
d)
Infiltration
79.
A slow-moving mass of ice formed from snow accumulation over hundreds to thousands of years. 
a)
Glacier
b)
Groundwater
c)
Lake
d)
Ocean
80.

Which processes of the water cycle gain energy? Select all that apply.

a)

condensation

b)

sublimation

c)

evaporation

d)

deposition

81.
a)
land breeze
b)
sea breeze
82.
Name the type of heat transfer?
a)
convection
b)
conduction
c)
radiation
83.
How does this heat reach the person?
a)
radiation
b)
conduction
c)
convection
84.
a)
conduction
b)
convection
c)
radiation
85.
a)
conduction
b)
convection
c)
radiation
86.
a)
convection current
b)
air current
c)
water current
d)
current
87.
a)
convection current
b)
radiation
c)
conduction
d)
convection
88.
"Shooting stars" happen in the 
a)
mesosphere
b)
thermosphere
c)
troposphere
d)
exosphere
89.
a)
radiation
b)
convection
c)
conduction
90.
a)
sea breeze
b)
land breeze
91.
a)
boiling water
b)
convection current
c)
hot air sinks
d)
cold air rises
92.
Which is high pressure?
a)
A
b)
B
93.
Westerlies
a)
1
b)
2
c)
3
d)
4
94.
What does this represent?
a)
greenhouse gases
b)
greenhouse effect
c)
the sun is hot
d)
the car is giving the sun a rasberry
95.
Heat type?
a)
radiation
b)
convection
c)
conduction
96.
How does this trap heat?
a)
green houses
b)
greenhouse effect
c)
clear glasses
d)
green plants inside
97.
How does this transfer heat?
a)
radiant
b)
convection
c)
conduction
98.
a)
land breeze
b)
sea breeze
99.
This is an example of
a)
radiant heat
b)
convection heat
c)
conduction heat
100.
Weather occurs in this atmospheric layer
a)
thermosphere
b)
troposphere
c)
mesosphere
d)
stratosphere
101.
Human-made gases that destroy ozone
a)
colorfulcarbons
b)
chloroflourocarbons
c)
flowerful carbons
102.
To handle a dispute without taking sides, you are being
a)
objective
b)
subjective
c)
biased
103.
The fact that nature is ______  makes it predictable.
a)
tentative
b)
consistent
c)
observable
d)
natural
104.
He's the cutest!!!
a)
I am biased.
b)
I am objective.
c)
I am subjective.
105.
This layer of the atmosphere contains the ozone layer
a)
troposphere
b)
stratosphere
c)
thermosphere
d)
mesosphere
106.

What is the definition of a cold front?

a)

Mass of cold air meets up with a mass of warm air

b)

Mass of warm air meets up with a mass of cold air

c)

Mass of cold air meets up with a mass of cold air

d)

Cold weather

107.

What is the definition of a warm front?

a)

Mass of cold air meets up with a mass of warm air

b)

Mass of warm air meets up with a mass of cold air

c)

Mass of cold air meets up with a mass of cold air

d)

Warm weather

108.

What is the definition of an occluded front?

a)

Mass of cold air meets up with a mass of warm air

b)

Mass of warm air meets up with a mass of cold air

c)

When a warm front is sandwiched between two cold masses of air

d)

When a warm and cold front meet and move very little

109.

What is the definition of a stationary front?

a)

Mass of cold air meets up with a mass of warm air

b)

Mass of warm air meets up with a mass of cold air

c)

When a warm front is sandwiched between two cold masses of air

d)

When a warm and cold front meet and move very little

110.

What is the definition of prevailing winds?

a)

Currents of wind that do not blow in a consistent pattern

b)

Currents of wind that blow in a consistent pattern

c)

When the Earth's rotation makes the wind change directions

d)

Places where the wind never stops blowing

111.

What is the Coriolis Effect?

a)

Currents of wind that do not blow in a consistent pattern

b)

Currents of wind that blow in a consistent pattern

c)

When the Earth's rotation makes the wind change directions

d)

Places where the wind never stops blowing

112.

What is the definition of atmosphere?

a)

All of the protective layers and gases surrounding the Earth

b)

The condition of the air around the Earth

c)

The pattern of weather in a specific place

d)

The place where planes fly

113.

What is a barometer used for?

a)

Measure air temperature

b)

Measure air pressure

c)

Measure air moisture

d)

Measure wind

114.

What type of clouds are cirrus clouds?

a)

Wispy clouds

b)

Puffy clouds

c)

Layered clouds

d)

Thunderheads

115.

What type of clouds are stratus clouds?

a)

Wispy clouds

b)

Puffy clouds

c)

Layered clouds

d)

Thunderheads

116.

What type of clouds are cumulus clouds?

a)

Wispy clouds

b)

Puffy clouds

c)

Layered clouds

d)

Thunderheads

117.

What is a front?

a)

Boundary between two air temperatures or air pressures

b)

The direction the weather moves

c)

The consistent pattern of the winds around the Earth

d)

The anterior of any building

118.

Which climate gets the most precipitation?

a)

Rainforest

b)

Desert

c)

Deciduous Forest

d)

Savanna

119.

Which climate gets the least precipitation?

a)

Rainforest

b)

Desert

c)

Deciduous Forest

d)

Savanna

120.

What is the temperature in a desert climate?

a)

Hot

b)

Warm

c)

Cool

d)

Cold

121.

What will happen when air pressure falls?

a)

Stormier weather

b)

Warmer weather

c)

Temperate weather

d)

Nothing

122.

What will happen when air pressure rises?

a)

Stormier weather

b)

Warmer weather

c)

Temperate weather

d)

Nothing

123.

What causes wind?

a)

Differences in air temperature

b)

Differences in air pressure

c)

The Coriolis Effect

d)

Constant high pressure

124.

What type of weather is expected at a cold front?

a)

Sharp changes in weather- storms likey

b)

Warmer temperatures-less precipitation

c)

light precipitation followed by heavy precipitation

d)

Temperate/calm weather

125.

What type of weather is expected at a warm front?

a)

Sharp changes in weather- storms likey

b)

Warmer temperatures-less precipitation

c)

light precipitation followed by heavy precipitation

d)

Temperate/calm weather

126.

What type of weather is expected at an occluded front?

a)

Sharp changes in weather- storms likey

b)

Warmer temperatures-less precipitation

c)

light precipitation followed by heavy precipitation

d)

Temperate/calm weather

127.

What type of weather is expected at a stationary front?

a)

Sharp changes in weather- storms likey

b)

Warmer temperatures-less precipitation

c)

light precipitation followed by heavy precipitation

d)

Temperate/calm weather

128.

How do meteorologists predict weather?

a)

Satellites

b)

Doppler Radar

c)

Computer Software

d)

Magic

129.

What is lightning?

a)

The sound made from thunder

b)

The thing Zeus throws

c)

Flash of electricity through the atmosphere

d)

Electrons in the atmosphere

130.

Why do we hear thunder after lightning?

a)

Light travels faster than sound

b)

Sound travels faster than light

c)

Light travels slower than sound

d)

Sound travels at the same speed as light

131.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
132.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
133.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
134.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
135.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
136.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
137.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
138.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
139.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
140.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
141.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
142.
B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
143.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
144.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
145.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
146.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
147.

What gender has an X and a Y chromosome?

a)

male

b)

female

c)

both

d)

none

148.
In a punnet square where are the parent alleles written?
a)
Top and inside the boxes
b)
Only on the left and right side of the boxes. 
c)
outside of the boxes (top and left side)
d)
All on the top side of the boxes
149.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
150.

G=green scales; g= white scales

What offspring do you get when you cross a 2 heterozygous parents?

a)

GG, gg

b)

GG, Gg, gg

c)

Gg, GG

d)

Gg

e)

Gg, gg

151.

G=green scales; g= white scales

What offspring do you get when you cross a 2 heterozygous parents?

a)

2 green and 2 white

b)

3 green and 1 white

c)

1 green and 3 white

d)

4 green

e)

4 white

152.

D= dimples, d=no dimples

What offspring do you get from crossing a heterozygous parent with a homozygous recessive parent?

a)

25% dimples, 75% no dimples

b)

75% dimples, 25% no dimples

c)

50% dimples, 50% no dimples

d)

100% dimples

153.

Y= gray fur, y= red fur

What offspring do you get from crossing a heterozygous parent with a homozygous dominant parent?

a)

25% gray, 75% red

b)

75% gray, 25% red

c)

50% gray, 50% red

d)

100% gray

154.

W=wings, w=no wings

What off spring would you get from mixing homozygous dominant with homozygous recessive?

a)

WW & ww

b)

WW, Ww, ww

c)

Ww

d)

Ww, ww

e)

Ww, WW

155.

W=wings, w=no wings

What off spring would you get from mixing homozygous dominant with homozygous recessive?

a)

50% with wings, 50% no wings

b)

100% with wings, 0% no wings

c)

25% with wings, 75% no wings

d)

75% with wings, 25% no wings

e)

0% with wings, 100% no wings

156.

The sum of all living matter on Earth.

a)

Biosphere

b)

Lithosphere

c)

Atmosphere

d)

Geosphere

157.

recycle, ___________, and reuse.

a)

recognize

b)

reunion

c)

reborn

d)

reduce

158.

The place where an organism naturally lives and grows.

a)

House

b)

Natural habitat

c)

Population

d)

Community

159.

The process of a species disappearing forever.

a)

Pollution

b)

Resource

c)

Contaminant

d)

Extinction

160.

A group of interacting individuals of the same species.

a)

Population

b)

Species

c)

Per capita

d)

Community

161.

A group of living things that have similar genes capable of reproducing.

a)

Population

b)

Species

c)

Ethnic group

d)

Globe

162.

Human activities can have a great impact, even causing ______________ of some marine life.

a)

extinction

b)

pollution

c)

revival

d)

decrease

163.

Typically, as human populations ____________, the negative impacts on Earth increase.

a)

increase

b)

decrease

164.

Natural fuel formed from the remains of living organisms.

a)

Solar energy

b)

Fossil fuels

c)

Bio fuels

d)

Clean energy

165.

A gradual increase in temperature of the Earth’s atmosphere caused by gases and pollutants.

a)

Global warning

b)

Global warming

c)

Global watching

d)

Global waxing

166.

A resource that can be replaced in a human lifetime.

a)

Renewable

b)

Nonrenewable

167.

The burning of fossil fuels has increased certain gas ___________ over time.

a)

absorption

b)

emissions

168.

When _______ are picked up by runoff, the effects can be harmful because of polluted water.

a)

renewable things

b)

organisms

c)

contaminants

d)

population

169.

Resources that exist in the environment without human intervention.

a)

National Resources

b)

Natural Resources

c)

Common Resources

d)

Public Resources

170.

The use of resources by specific populations (i.e.fuels, food, etc)

a)

Pollution

b)

Reduction

c)

Consumption

d)

Deforestation

171.

All of the living and nonliving factors in an area.

a)

Population

b)

Earth

c)

Government

d)

Environment

172.

Average per person

a)

Per million

b)

Per capital

c)

Per capita

d)

Per coffee

173.

____________ is the number of different species of plants and animals in an area.

a)

Per capita

b)

Address

c)

Biology

d)

Biodiversity

174.

Fossil fuels release _____________ into the atmosphere.

a)

Oxygen

b)

Methylmercury

c)

Ozon

d)

Carbon dioxide

175.

A resource that cannot be replaced in a human lifetime.

a)

Renewable

b)

Nonrenewable

176.

Management or care of Earth's resource.

a)

Lordship

b)

Fellowship

c)

Friendship

d)

Stewardship

177.

Mercury is released as the coal is burned. And it changes into the highly toxic compound _____________.

a)

Methylalchol

b)

Methylmercury

c)

Methylene

d)

Methylparaben

178.

recycle, reduce, and ____________.

a)

retake

b)

request

c)

reuse

d)

revive

179.

Amount of greenhouse gases produced by human activities.

a)

Gross National Product

b)

Carbon footprint

c)

Carbon family

d)

Greenhouse effect

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