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environmental science

Total questions: 154

Worksheet time: 2hrs 55mins

Name
Class
Date
1.

What is the difference between Ecology and Environmental Science?

a)

1)Ecology is the study of how organisms interact with their environments.; and environmental science is the study of how the natural world works, and how humans and the environment affect each other.

b)

2)Ecology studies nature; environmental science studies an organism only

c)

3)Ecology is the study of an organism and environmental science does not study any organisms

d)

4)None of these answers are correct

2.

Sustainability is defined as…

a)

1) Consuming at a rate to satisfy the current generation.

b)

2) Rapidly increasing resource consumption over time.

c)

3) Maintaining a rate of resource consumption that will allow the population to survive indefinitely.

d)

4) Not consuming any resources at all.

3.

What is made up of all the living and nonliving things which an organism interacts with?

a)

1) Atmosphere

b)

2) Water Supply

c)

3) Environment

d)

4) Soil

4.

Which is a social movement dedicated to protecting the natural world from human actions

a)

1) Environmental Science

b)

2) Environmental Policy

c)

3) Environmental Ethics

d)

4) Environmentalism

5.

A natural resource that is naturally formed much more slowly than we use it is called

a)

1) renewable

b)

2) ecological

c)

3) non-renewable

d)

4) sustainable

6.

Which of the following is a nonrenewable resource?

a)

1) Wind

b)

2) Sunlight

c)

3) Water

d)

4) Coal

7.

As the human population grows, resources

a)

1) decrease

b)

2) increase

c)

3) stay the same

d)

4) increase, then decrease

8.

Which one is a completely renewable resource?

a)

1) Oil

b)

2) Sunlight

c)

3) Coal

d)

4) Fresh water

9.

Any materials or energy from nature that humans need to survive.

a)

natural resource

b)

environment

c)

nonrenewable resource

d)

inference

10.

True or False? Humans affect the environment but the environment does NOT affect us.

a)

True

b)

False

11.

The environment contains

a)

1) biotic organisms.

b)

2) abiotic things.

c)

3) both biotic and abiotic things.

d)

4) none of the above

12.

Which of the following resources are considered renewable natural resources?

a)

• Sunlight • Wind energy • Wave energy • Geothermal energy

b)

Sunlight only

c)

Petroleum Oil, sunlight, geothermal energy

d)

none of the above

13.

Which of the following are examples of nonrenewable natural resources ?

a)

1) • Sunlight • Wind energy • Wave energy • Geothermal energy

b)

2) • Crude oil • Natural gas • Coal • Copper, aluminum, and other metals

c)

3) Wind Energy only

d)

4) None of the above

14.

What's the difference between renewable and nonrenewable natural resources?

a)

1) Non-renewable natural resources are naturally formed much more slowly and once they are used up--, they are gone forever!

b)

2) options 1 and 4 of the answer choices

c)

3) Non-renewable natural resources are naturally formed much more slowly and once they are used up--, they are gone forever!

d)

4) Renewable natural resources are naturally replenished, or renewed, over short periods.

15.

Completely renewable resources, such as sunlight and wind energy, will always be there for us.

a)

True

b)

False

16.

What will happen if we use resources globally at an unsustainable rate?

a)

1) a lot can happen

b)

2) No one is responsible for using up all of the resources--its the Earth's own fault.

c)

3) when resources are unregulated, everyone takes what he or she or they can until the resources are depleted. No one takes responsibility, so everyone eventually loses.

d)

4) resources can replenish itself it just takes time.

17.

This land form was most likely formed by __________.

a)

the movement of wind

b)

the movement of water

c)

the movement of a glacier

d)

the movement of a tornado

18.

This image shows the slow movement of a glacier. What process is taking place at the point where the ice lands on the water.

a)

weathering of sediment

b)

deposition of sediment

c)

erosion of sediment

d)

melting of sediment

19.

A glacier is __________

a)

a large river that slowly flows towards the ocean

b)

a cave inside a mountain that contains stalactites and stalagmites

c)

a large body of ice that does not move across the earth's surface

d)

a large body of ice and snow that slowly moves towards the ocean

20.

A u-shaped valley can take millions of years to form. Which diagram best represents how a u-shaped valley can form?

a)
b)
c)
d)
21.

Some students were conducting the experiment shown above. What question were the students trying to answer?

a)

What effect does water have on land?

b)

What effect does wind have on land?

c)

What effect does ice have on land?

d)

What effects do water, ice, and wind have on land?

22.

The closer you live to the ocean, the more likely your climate will be a...

a)

marine climate

b)

tropical climate

c)

continental climate

d)

subtropical climate

23.

Which zones are polar zones?

a)

Zones A and B

b)

Zones A and E

c)

Zones E and D

d)

Zones A, E, and C

24.

Which zone is the tropical zone?

a)

Zone B

b)

Zone C

c)

Zone D

d)

Zone E

25.

Possible human solutions for limiting global warming and climate change are...

a)

being more energy-efficient

b)

using renewable sources of energy

c)

removing carbon from fossil fuel emissions

d)

all of the above

26.
Which of the following is contributing to an increase in carbon dioxide in the atmosphere?
a)
deforestation
b)
photosynthesis
c)
oceans
d)
all of the above
27.

Name Greenhouse gas

a)

CO2

b)

Methane

c)

Oxygen

d)

All of above

28.
Increasing quantities of CO2 (Carbon Dioxide) in the atmosphere will cause air temperatures to be _____. 
a)
warmer
b)
cooler
29.
Which of the following is NOT evidence of global warming?
a)
Sea level rising
b)
Loss of Arctic Sea Ice
c)
Less Water Vapor in the Air
d)
More extreme weather events
30.
Climate change causes extreme weather conditions such as:
a)
Flooding
b)
Heat Waves
c)
Hurricanes
d)
All of the above
31.
The amount of carbon dioxide CO2 in the atmosphere is decreasing. 
a)
True
b)
False
32.
Which human activity contributes the MOST carbon dioxide to the atmosphere?
a)
Fishing
b)
Breathing
c)
Burning Fossil Fuels
d)
Farming
33.

Possible human solutions for limiting global warming and climate change are...

a)

being more energy-efficient

b)

using renewable sources of energy

c)

removing carbon from fossil fuel emissions

d)

all of the above

34.

Floating sea ice melts...

a)

and causes sea levels to rise because it adds water to the ocean.

b)

but does not cause sea levels to rise because the ice displaces the same amount of ocean water as the melted ice would displace.

35.

Melting land ice...

a)

causes sea levels to rise because it adds water to the ocean.

b)

does not cause sea levels to rise because the water fills the space left by the melted sea ice.

36.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
37.
Which is a natural source of greenhouse gases?
a)
aerosols
b)
deforestation
c)
volcanic eruptions
d)
burning fossil fuels
38.
Everyone has a carbon footprint.
a)
true 
b)
false
39.

Which is not going to help reduce our carbon footprint?

a)

eating local food

b)

recycling

c)

driving to school

d)

planting trees

40.

Which statement about the albedo of ocean water and sea ice in the summer is correct?

a)

The low albedo of ocean water means the heated water will sink and form ocean currents.

b)

The albedo of sea ice is lower than the albedo of ocean water, leading to the melting of sea ice.

c)

Sea ice absorbs less radiation, making it warmer than ocean water.

d)

Ocean water absorbs more radiation and is warmer than sea ice.

41.

What has the highest albedo?

a)

the oceans

b)

Ice in the Arctic or Antarctic

c)

the ground

d)

roads

42.
Why does cutting down trees increase global warming?
a)
trees soak up carbon dioxide
b)
trees provide shade which counteracts global warming
c)
trees absorbs the sun's energy without radiating back into the atmosphere
d)
trees drain greenhouse gases like methane from soil
43.

Preconceived opinion that is not based on reason or actual experience is called

a)

Brainstorming

b)

Debate

c)

Prejudice

d)

Civil Discourse

44.

Prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair is called

a)

Bias

b)

Disagreement

c)

Civil Discourse

d)

Agreement

45.

Leaving out someone's opinion in an article is called bias by

a)

Emphasis

b)

Omission

c)

Use of language

d)

Headlines

46.

When the author of an article has a huge influence on how the article is biased it is

a)

Bias by repetition

b)

Bias by headline

c)

Bias by omission

d)

Bias in the source

47.

When both graphs show the same information, but one is altered to mislead the public, it is called

a)

Bias in numbers and statistics

b)

Bias by omission

c)

Bias by emphasis

d)

Bias by repetition

48.

When the media uses certain words to make people feel a certain way about the report it is called bias by

a)

Repetition

b)

Emphasis

c)

Omission

d)

Use of language

49.

When media creates a distorted view of the event by sensationalizing what is happening it is bias by

a)

Repetition

b)

Omission

c)

Headlines

d)

Use of language

50.

When the media puts certain stories on the front page of the newspaper, or show certain news stories first, it is bias by

a)

Omission

b)

Emphasis

c)

Numbers and statistics

d)

Connotation

51.

When the media repeats the same stories and headlines, it is bias by

a)

Prejudice

b)

The source

c)

Numbers and statistics

d)

Repetition

52.
Bias means _____________ one view over another view.
a)
supplementing
b)
favoring
c)
opinioning
d)
hosting
53.
An article about the effects of eating chocolate every day only tells the benefits. This article is an example of which type of bias?
a)
bias by source selection
b)
bias by omission
c)
bias by labeling
d)
bias by spin
54.
A reporter whose newspaper is bought mostly by people who work in the oil industry is writing an article about the impact of exhaust fumes on environment. He only uses quotes from people who agree that car exhaust is not a problem. This article is an example of which type of bias?
a)
Bias by spin
b)
Bias by labeling
c)
Bias by selection of sources
d)
Bias by omission
55.
A form of communication that reaches many people at once is called
a)
mega
b)
medium
c)
media
d)
maximum
56.
A reporter writes an article about the latest Nike shoes claiming only the coolest people will be seen wearing them. Only fools would wear anything else. This is an example of which type of bias?
a)
Bias by labeling
b)
Bias by spin
c)
Bias by selection of sources
d)
Bias by omission
57.
If an author relays all the facts regarding a topic it shows
a)
Positive Bias
b)
Objective
c)
Negative Bias
58.
You have to understand the goals of media to be able to judge their
a)
creations
b)
skeptical
c)
credibility
d)
realism
59.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
60.

The main human activity that releases greenhouse gases is

a)

using public transportation and there by reduce the affects of greenhouse gases.

b)

burning fossil fuels

c)

texting on cellphones

d)

eating meat

61.
 What is the greenhouse effect?
a)
The warming of a planet due to trapped radiation.
b)
The cooling of Earth due to air pollution.
c)
The heating of a solid, such as a rock.
62.
T/F: Water vapor is a greenhouse gas
a)
True
b)
False
63.
Which is a natural source of greenhouse gases?
a)
aerosols
b)
deforestation
c)
volcanic eruptions
d)
burning fossil fuels
64.
Which natural process removes carbon dioxide from the atmosphere?
a)
forest fires
b)
volcanic eruptions
c)
cellular respiration
d)
photosynthesis
65.

Which of the following gases IS NOT considered a greenhouse gas?

a)

carbon dioxide

b)

nitrogen

c)

water vapor

d)

methane

66.

Which of the following is contributing to an increase in carbon dioxide in the atmosphere?

a)

deforestation

b)

photosynthesis and respiration

c)

oceans acidification

d)

all of the above

67.

Global temperatures have been increasing drastically?

a)

since the Jurassic Era (time of dinosaurs) 65 million yr ago

b)

since the advent of human kind.

c)

since the industrial revolution.

d)

Climate change is not real and there is not scientific evidence of temperature change.

68.
Carbon is stored in
a)
Trees and other living things
b)
Oceans
c)
underground in soil and fossil fuels
d)
All are correct
69.
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)
evaporation
b)
condensation
c)
the greenhouse effect
d)
radiation
70.

The largest store of Carbon Dioxide on our planet is found in which of the following?

a)

In the atmosphere

b)

In our Oceans

c)

Barried in the ground

d)

In living organisms

71.

Scientists collect data on climate all around the world. They then input this data into a mathematical or computer-based model to simulate real-world conditions.

a)

True

b)

False

72.
What two things can happen when energy from the Sun interacts with the ground?
a)
absorbed & reflected
b)
absorbed & refracted
c)
absorbed & transmitted
d)
reflected & refracted
73.
What happens if you remove all of the carbon dioxide from the atmosphere? The temperature:
a)
decreases
b)
increases
c)
stays the same
74.
How do carbon dioxide (CO2) and other greenhouse gases cause Earth's atmosphere to warm?
a)
absorb incoming solar radiation
b)
reflect incoming solar radiation
c)
absorb outgoing infrared radiation
d)
emit outgoing infrared radiation.
75.

Currently, about 10% of Earth is covered with ice all year-round. If this ice melts, what could happen to Earth's temperature?

a)

decrease in temperature

b)

increase in temperature

c)

rise in sea level

d)

rise of zombie polar bears

76.
Describe how changes in the amount of ice covering Earth's surface can affect Earth's temperature.
a)
more ice, more reflection, cooler temperature
b)
more ice, less reflection, cooler temperature
c)
more ice, more absorption, cooler temperature
d)
more ice, less absorption, warmer temperature
77.

The total amount of greenhouse gases released by a product, service or event over its full life cycle is linked to __________________________

a)

the carbon cycle

b)

it’s carbon footprint

c)

pollution

d)

CFCs

78.

The thinning of the ozone layer is also known as the

a)

ozone hole

b)

ozone gap

c)

ozone space

d)

ozone void

79.

SUnburn occurs when your skin is exposed to harmful ______ rays

a)

radio

b)

magnetic

c)

ultraviolet

d)

infrared

80.

Gamma radiation can be used to treat

a)

cataracts

b)

sunburn

c)

reduced crop yields

d)

cancer

81.

What is the normal amounts of ozone in the atmosphere?

a)

100

b)

160

c)

200

d)

300

82.

The concentration of ozone is measured in _____ units. The blue and purple colours represent ____ levels of ozone.

a)

Dobson , Low

b)

Dobson , High

c)

Dobson , zero

83.

The thinning of the ozone layer is also known as the

a)

ozone hole

b)

ozone gap

c)

ozone space

d)

ozone void

84.

Ozone is formed in the

a)

troposhere

b)

stratosphere

c)

mesosphere

d)

thermosphere

85.

The ozone layer is an actual hole. True or false?

a)

True

b)

False

86.

Which type of radiation is absorbed by the ozone layer?

a)

infrared

b)

gamma

c)

visible light

d)

ultraviolet

87.

Ozone is made of which chemical element?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

88.

CFCs are responsible for the damage caused to the ozone layer. Select ALL of chemical elements make up CFCs.

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Fluorine

e)

Chlorine

89.
When we discuss greenhouse gases what is the main one we discuss?
a)
Methane (CH4)
b)
Carbon Dioxide (CO2)
c)
Nitrous oxide (N2O)
d)
Flourinated gases
90.
The main human activity that releases greenhouse gases is...
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
91.
Without any greenhouse effect the Earth would be...
a)
Fine
b)
Too Cold to Support Life
c)
Very Hot
92.
Over the past 200 years, the level of carbon dioxide in the atmosphere has
a)
decreased slightly.   
b)
increased until recently, and then decreased.
c)
increased steadily.   
d)
stayed about the same.
93.
Which layer in the atmosphere protects us form harmful UV radiation?
a)
Ozone
b)
Troposphere
c)
Ionosphere
d)
Exosphere
94.

Adding harmful things to the environment is called

a)

Pollution

b)

Waste

c)

Acid rain

d)

Sulfur dioxide

95.

Which of these problems can be caused by air pollution?

a)

Respiratory problems

b)

Increased disease for humans

c)

Reduced food sources for humans

d)

Decrease in global temperatures

96.

Ozone is made of which chemical element?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

97.

The thinning of the ozone layer is also known as the

a)

ozone hole

b)

ozone gap

c)

ozone space

d)

ozone void

98.

Ozone is formed in the

a)

troposhere

b)

stratosphere

c)

mesosphere

d)

thermosphere

99.

The concentration of ozone is measured in _____ units. The blue and purple colors represent ____ levels of ozone.

a)

Dobson , Low

b)

Dobson , High

c)

Decibel , Low

d)

Decibel , High

100.

How many oxygen atoms does a molecule of ozone contain?

a)

1

b)

2

c)

3

d)

4

101.

When was the first news of the ozone hole first published?

a)

1965

b)

1974

c)

1985

d)

1994

102.

The depletion in the Ozone layer is caused by:

a)

Carbon dioxide

b)

Nitrous oxide

c)

Methane

d)

Chlorofluorocarbon

103.

Which of the following represents ozone gas molecule:

a)

O6

b)

O4

c)

O9

d)

O3

104.

The Montreal Protocol was passed in

a)

1985

b)

1986

c)

1987

d)

1982

105.

Where is the largest 'hole' in the ozone layer located?

a)

Over the United States

b)

Over Europe

c)

Over Antarctica

d)

Around the equator

106.

Which of these sets of three items produce CFCs

a)

cars, factories, and cardboard

b)

spray cans, cardboard, insulation

c)

spray cans, refrigerant, cardboard

d)

spray cans, refrigerant, insulation

107.

Which are effects of UV radiation on living organisms? select ALL that are true.

a)

It can cause cataracts.

b)

It can cause mutation in DNA.

c)

It can disrupt food chains by causing harm to photosynthetic organisms.

d)

It can cause organisms to overheat.

108.

Which is the proper expression about OZONE?

a)

Good Up High, Bad Nearby

b)

Bad Up High , Good Nearby

109.

The ozone layer protects us from

a)

Increased atmospheric heat

b)

CFCs

c)

UV rays

d)

Decreased atmospheric heat

110.

Though CFC production has been curtailed, the threat to upper atmospheric ozone continues because CFCs

a)

become harmless quickly.

b)

destroy ozone for only a short time.

c)

persist but stop destroying ozone.

d)

persist and continue to destroy ozone for decades.

111.
How many ozone atoms can a single chlorine atom break down?
a)
5,000
b)
10,000
c)
50,000
d)
100,000
112.

When is the ozone hole largest?

a)

early Antarctic spring

b)

late Antarctic summer

c)

early Antarctic winter

d)

late Antarctic fall

113.

Which of the following is NOT an ingredient that is needed to produce the ozone hole?

a)

Infrared Light

b)

Cold Temperatures

c)

UV Light

d)

Chlorine from CFCs

114.

Which are effects of UV radiation on living organisms? select ALL that are true.

a)

It can cause mutations in amphibians.

b)

It can decrease crop yield because it interferes with photosynthesis.

c)

It can cause skin cancer and premature aging in humans.

d)

It can cause positively effect the marine food chain.

115.

Ground level ozone (also known as tropospheric ozone) is ______________________.

a)

a significant source of air pollution and contributes to the formation of smog

b)

also found in the exosphere

c)

found only in rural areas

d)

a significant source of air pollution and contributes to the increase in the hole in the ozone layer.

116.

Ozone is made up of __________________ oxygen atoms.

a)

3

b)

2

c)

1

d)

5

117.

The atmospheric layer that humans live in is known as the _____________________.

a)

troposphere.

b)

stratosphere.

c)

exosphere.

d)

thermosphere.

118.

"Criteria Air Pollutants" were established by the _________________________________.

a)

Environmental Protection Agency (EPA)

b)

Department of the Interior (DI)

c)

Center for Disease Control (CDC)

d)

United Nations (UN)

119.

Nitrous oxides enter the atmosphere from _____________________.

a)

fossil fuels

b)

meteorites

c)

ozone depletion

d)

CFC's

120.

Chlorofluorocarbons is represented by the abbreviation _________________.

a)

CFC

b)

ChFC

c)

Chl

d)

hydrocarbons

121.

Bad or Hazardous ozone is found in the _______________________________.

a)

troposphere

b)

stratosphere

c)

mesosphere

d)

thermosphere

122.

The most common source of carbon monoxide comes from _____________________________.

a)

vehicles

b)

swamp gases

c)

industrial sources

d)

none of these

123.

Which of the following is an adverse health effect from air pollution?

a)

allergic reactions

b)

bronchial inflammation

c)

eye and lung irritants

d)

All of these are correct

124.
Over the past 30 years, air quality in the United States has generally _______________
a)
improved
b)
declined
125.
One cause of ________________ is the burning of coal that contains a lot of sulfur.
a)
acid rain
b)
soot
126.
Harmful substances in air, water, or soil are called ________________.
a)
pollutants
b)
particles
127.
The majority of air pollution comes from __________________.
a)
burning fossil fuels
b)
particulate matter
128.

Air pollution causes all of the following, except

a)

holes in the ozone layer

b)

increased particles in the air

c)

acid rain

d)

healthy air to breath

e)

smog

129.

Natural causes of air pollution include all of the following

a)

forest fires

b)

dust

c)

volcanic ash

d)

wind

e)

pollen

130.

A radioactive gas that can build up in homes.

a)

uranium

b)

helium

c)

oxygen

d)

radon

131.

Exposure to too much radon gas can cause

a)

lung cancer

b)

sun burn

c)

blindness

d)

acne

132.

Radon is usually found in this location in your home.

a)

attic

b)

basement

c)

bathroom

d)

kitchen

133.

How do humans cause air pollution?

a)

plowing of fields

b)

burning fossil fuels (coal, oil)

c)

using solar power

d)

driving electric cars

134.

What is the main cause of air pollution?

a)

plowing fields and releasing dust

b)

using solar power

c)

burning fossil fuels

d)

using water power

135.

Climate change caused by extra carbon dioxide in the air that causes heat to get trapped in the atmosphere is called

a)

global warming

b)

photosynthesis

c)

smog

136.

Gases released from power plants mix with water vapor in the sky to make ________________.

a)

smog

b)

acid rain

c)

global warming

d)

particulate matter

137.

A mixture of smoke, fog and chemicals in the air is known as ________.

a)

oxygen

b)

radiation

c)

smog

138.

What are ways that we can decrease air pollution?

a)

carpool

b)

conserving electricity

c)

follow laws made by the EPA

d)

burning extra fossil fuels

139.

Which layer of the atmosphere has meteors?

a)

troposphere

b)

stratosphere

c)

mesosphere

d)

thermosphere

140.

Which layer of the atmosphere contains the ionosphere?

a)

troposphere

b)

stratosphere

c)

mesosphere

d)

thermosphere

141.

Which layer of the atmosphere has weather?

a)

troposphere

b)

stratosphere

c)

mesosphere

d)

thermosphere

142.

Which layer of the atmosphere contains the ozone?

a)

troposphere

b)

stratosphere

c)

mesosphere

d)

thermosphere

143.

"atmo-" means

a)

gas or vapor

b)

water

c)

Earth or rocks

d)

life

144.

Airplanes fly in the

a)

troposhphere

b)

mesosphere

c)

stratosphere

d)

exosphere

145.

As you get farther away from the Earth, the layers of the atmosphere get

a)

colder

b)

warmer

146.

Earth's atmosphere is mostly made up of which 2 gases? CHOOSE 2!!!!!!

a)

nitrogen

b)

oxygen

c)

ozone

d)

water vapor

147.
Heat from the sun travels to Earth by _____.
a)
conduction
b)
convection
c)
insulation
d)
radiation
148.
What is radiation?
a)
The average amount of energy of motion of each molecule of a substance.
b)
Sunlight travels through the atmosphere to earth's surface.
c)
The direct transfer  of energy by electromagnetic .
d)
The middle portion of the atmosphere.
149.
What is an infrared radiation?
a)
Wavelengths that are longer than red light.
b)
Energy from the sun.
c)
An invisible form of energy with wavelengths that are shorter than violet light.
d)
Energy observed by the Earth's atmosphere.
150.
What is an Ultraviolet radiation?
a)
Wavelengths that are longer than red light. 
b)
Energy from the sun travels to Earth across a full spectrum of wavelengths.
c)
It radiates most of the energy back into the atmosphere.
d)
An invisible form of energy with wavelengths that are shorter than violet light. 
151.
What is greenhouse effect?
a)
the process by which gasses hold heat in the air .
b)
water vapor and dioxide.
c)
particles in the atmosphere.
d)
heat
152.
Sunburn is caused by _____________________.  It can't be felt as heat.
a)
infrared radiation
b)
visible light
c)
spectrum radiation
d)
ultraviolet radiation
153.
A natural process that holds heat in is called_________________.
a)
greenhouse effect
b)
infrared radiation
c)
ultraviolet radiation
d)
visible light
154.
What form of electromagnetic waves are felt as heat? 
a)
ultraviolet radiation
b)
visible light
c)
greenhouse radiation
d)
infrared radiation

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