Mec 280

Front 1

How many miles above the earth's surface is the ozone layer?

Back 1

12 to 25 miles

Front 2

Which atom destroys the ozone most?

Back 2

Chlorine

Front 3

Which atom destroys the ozone least?

Back 3

hydrogen

Front 4

The ozone layer was formed about

Back 4

1 billion years ago

Front 5

CFCs were developed in the early

Back 5

1930s

Front 6

What does Y represent in the chemical reaction below?

O3 + Y -> O2 + O

Back 6

UVB

Front 7

Which of the following is not a halogen atom?

Back 7

hydrogen

Front 8

CFCs (chloro-fluoro-carbons) were used in

Back 8

foams

Front 9

Which of the following is not a green-house gas?

Back 9

oxygen

Front 10

A hole (50% reduction) in the Antartic ozone layer was first observed in the

Back 10

1980s

Front 11

CFCs were used in

Back 11

all of the above

Front 12

Which of the following ultraviolet light that mostly destroys the ozone?

Back 12

UVB

Front 13

Which of these greenhouse gases has the highest percentage composition in the atmosphere?

Back 13

water vapor

Front 14

60% of the CFC-12 will disappear form the atmosphere in about

Back 14

116 years

Front 15

60% of the CFC-11 will disappear from the atmosphere in about

Back 15

55 years

Front 16

Acidic deposition

Back 16

often crosses national boundaries, creating international disputes

Front 17

You have been hired by a rapidly growing small city to improve the air quality, which has deteriorated in the past 10 years. Your first suggestion is

Back 17

to improve transportation options, including carpool lanes, buses, and light rail

Front 18

Which of the following is a consequence of acidic deposition?

Back 18

It changes soil chemistry, leaching out important minerals

Front 19

Which of the following can result in the formation of acids in the atmosphere?

Back 19

nitrogen oxides and sulfur oxides

Front 20

Air pollution may result in adverse effects upon

Back 20

all of the above

Front 21

The largest source of volatile organic compounds as air pollutants is what?

Back 21

industry

Front 22

The recent increase of the world average temperature correlates with the recent rise of the concentration of atmospheric

Back 22

carbon dioxide

Front 23

During the Little Ice Age the average world temperature drop was about

Back 23

4˚F

Front 24

The Little Ice Age lasted about

Back 24

500 years

Front 25

July and August are such hot months for the Northern Hemisphere because

Back 25

the Northern Hemisphere is tilted towards the sun

Front 26

The earth's axis is tilted to a line normal to the plane of the ellipse at an angle of

Back 26

23.45˚

Front 27

The winter season is from

Back 27

December 22 to March 21

Front 28

Which type of UV radiation is needed to produce vitamin D?

Back 28

UVA

Front 29

The wavelength of UVA radiation is

Back 29

320-380 nm

Front 30

Which type of uv radiation is responsible for the most DNA damage at the earth's surface?

Back 30

UVB

Front 31

The wavelength of UVC radiation is

Back 31

250-290 nm

Front 32

Which UV radiation is mostly filtered by the atmosphere?

Back 32

UVC

Front 33

Which of the following on the electromagnetic spectrum has the lowest/shortest wavelength?

Back 33

Gamma rays

Front 34

Which of the following on the spectrum has the highest/longest wavelength?

Back 34

AM radio

Front 35

Which color has the highest frequency on the electromagnetic spectrum?

Back 35

violet

Front 36

The ________ is the unit of frequency

Back 36

hertz

Front 37

The _____ is the unit of wavelength

Back 37

meter

Front 38

How many nanometers are in a....

Back 38

meter? one billion, 10^9

millimeter? one million, 10^6

micron? one thousand, 10^3

Front 39

Visible light has wavelengths in the range

Back 39

400-680 nm

Front 40

Increased radiation in the range 288 - 290 nm may

Back 40

all of the above

Front 41

Which of the following is not a layer on the earth's atmosphere?

Back 41

biosphere

Front 42

Which is the farthest layer from the earth's surface?

Back 42

exosphere

Front 43

Which is the most turbulent region in the earth's atmosphere?

Back 43

troposphere

Front 44

99% of the uv radiation that reaches the earth's surface is UVB

Back 44

false

Front 45

The pollutant responsible for ozone holes is

Back 45

CFC

Front 46

The most deadly form of skin cancer is

Back 46

malignant melanoma

Front 47

In the equation c= f lambda. What does the variable lambda represent?

Back 47

wavelength

Front 48

Put the following waves in order of increasing wavelength

I. FM radio II. AM radio III. microwaves

Back 48

III. microwaves, I. FM radio, II. AM radio

Front 49

Arrange the following regions in order of decreasing wavelength starting with the highest wavelength.

I. UV light II. infrared III. visible

Back 49

Infrared light, visible light, uv light

Front 50

Arrange the following colors in order of increasing wavelengths, starting with the lowest wavelength

I. red II. violet III. green

Back 50

violet, green, and red

Front 51

The largest portion of the atmospheric gases by weight is

Back 51

nitrogen

Front 52

Weather patterns are largely determined in the

Back 52

troposphere

Front 53

Tropospheric ozone

Back 53

is produced through the interaction of heat and light, with nitrogen oxides and other carbon-containing compounds

Front 54

One of the problems that occurs as a consequence of CFC pollution is

Back 54

increasing skin cancer in humans

Front 55

Air near Earth's surface tends to be

Back 55

warmer and wetter; then it rises, expanding, and cooling

Front 56

The reason that temperature increases with altitude through most of the stratosphere is

Back 56

heat released by absorption of UV radiation by oxygen and ozone

Front 57

The wavelength of a wave is 8 meters. The frequency of the wave is 2 Hz. What is the speed of the wave?

Back 57

16 m/s

Front 58

Which uv radiation is mostly filtered by the atmosphere?

Back 58

UVC

Front 59

Seasons are a result of

Back 59

differences in the amount and intensity of sunlight brought about by the tilt of the axis

Front 60

A 760 rem exposure is likely to

Back 60

kill you

Front 61

The most commonly used unit of radiation exposure is

Back 61

rem

Front 62

Yearly ionizing radiation exposures are considered unsafe above

Back 62

0.2 rem

Front 63

A beta particle consists of

Back 63

an electron

Front 64

An alpha particle consists of

Back 64

two protons and two neutrons

Front 65

What is the number of protons in a carbon atom/nucleus?

Back 65

6

Front 66

What is the number of neutrons in uranium 235 nucleus?

Back 66

143

Front 67

What is the number of protons in a chlorine atom?

Back 67

17

Front 68

Nuclear power plants emit all forms of greenhouse gases

Back 68

false

Front 69

Which is not true about nuclear power plants?

Back 69

need to build tall smoke stacks

Front 70

Which of the following is not true about beta particle?

Back 70

heavier

Front 71

What does this equation, E=hv represent?

Back 71

energy released by a photon

Front 72

The fundamental unit of radiation exposure is

Back 72

all of the above

Front 73

Which of the following states is not part of the MINK project?

Back 73

minnesota

Front 74

Which of the following does not fall under the MINK project category?

Back 74

New York

Front 75

If the atomic number of an element X is 6. What is the number of protons in the nucleus of X?

Back 75

6

Front 76

Which is an economic crop grown in the United States?

Back 76

all of the above

Front 77

The speed of light about

Back 77

299 million meters per second

Front 78

IF the atomic number of an element X is 6. Which element is X in the periodic table?

Back 78

none of the above

Front 79

In the equation given as c = f lambda. What does the variable lambda represent?

Back 79

wavelength

Front 80

Increased heat deaths, disease, and less potable water are likely consequences of

Back 80

global warming

Front 81

What percentage of all the people in the world live near sea level?

Back 81

60%

Front 82

Global warming may lead to

Back 82

all of the above

Front 83

During photosynthesis, plants use oxygen and produce carbon dioxde

Back 83

false

Front 84

Rising in sea level as a result of global warming can lead to

Back 84

all of the above

Front 85

By the year 2100, the rise in sea level is estimated to be about

Back 85

one half meter

Front 86

Glucose can be converted into other molecules such as?

Back 86

all of the above

Front 87

The chemical symbol C6H12O6 represents?

Back 87

glucose

Front 88

It was predicted that for a temperature rise of about 1˚C by the year 2030 will cause us productivity to

Back 88

drop by 25%

Front 89

Which of the following is true regarding water contamination and treatment?

Back 89

many contaminants do not affect the taste or appearance of water

Front 90

Pet dogs and cats can create potential health risks of asthma attacks for household members

Back 90

true

Front 91

Which of the following air pollution has shown the greatest decline in recent years?

Back 91

lead

Front 92

Which of the following air pollution has shown the least decline in recent years?

Back 92

nitrogen oxides

Front 93

Air pollution may result in adverse effects upon

Back 93

all of the above

Front 94

The most effective ventilation system for a home is

Back 94

a mechanical system that exhausts air to the outside

Front 95

Microwave radiation comes from FM radio, tv, and cell phones

Back 95

true

Front 96

When radon decays it releases

Back 96

an alpha particle

Front 97

Us 235U stable?

Back 97

No

Front 98

IS 238U stable?

Back 98

Yes

Front 99

Is 222Rn stable?

Back 99

no

Front 100

Eventually Rn 222 decays into

Back 100

lead

Front 101

Lower radiation doses below 400 rem can lead to

Back 101

all of the above

Front 102

What is the number of neutrons in the nucleus of an element with mass number of 35, and atomic number of 17?

Back 102

18

Front 103

Compared to the radio waves used in normal radio broadcasts, the microwaves used for satellite transmissions have

Back 103

higher frequencies and shorter wavelengths

Front 104

Radioactive isotope technetium-99m has a half-life of 6 hours. What fraction of a sample of technetium-99m remains after 24 hours?

Back 104

1/16

Front 105

Radioactive element has a half life of 3 hours. How long will it take for 1/8 of that element to remain?

Back 105

9 hours

Front 106

Two different isotopes of the same element have the

Back 106

same number of protons and electrons, but different numbers of neutrons

Front 107

Radon

Back 107

may cause damage to respiratory tissues when inhaled

Front 108

Why does FM radio sound richer than AM radio?

Back 108

FM has a larger bandwidth

Front 109

Which of the following is not true about radon gas?

Back 109

distinct color

Front 110

The maunder minimum refers to

Back 110

a minimum in solar sunspot activity

Front 111

What natural force triggered the LIA?

Back 111

all of the preceeding

Front 112

Which of the following gases are released during a volcanic eruption?

i. carbon dioxide ii. water vapor

iii. carbon monoxide iv. sulfur dioxide

Back 112

i. carbon dioxide

ii. water vapor

iv. sulfur dioxide

Front 113

How many major volcanic eruptions took place each century during the LIA?

Back 113

5

Front 114

It is estimated that the percentage of lung cancer deaths due to radon is

Back 114

10%

Front 115

When radon decays it releases

Back 115

an alpha particle

Front 116

Formaldehyde may be found in

Back 116

all of the above

Front 117

Sick building syndrome (SBS) encompassing a number of related effects that include

Back 117

all of the above

Front 118

Legionnaire's disease was first observed in 1976 in

Back 118

Philadelphia

Front 119

Formaldehyde is

Back 119

soluble in water

Front 120

Which of the following nucleus is identical to an alpha particle?

Back 120

helium

Front 121

Microwaves have wavelengths between

Back 121

1 millimeter to 1 meter

Front 122

Microwaves have frequency between

Back 122

300 MHz to 300 GHz

Front 123

What does "AM" stand for?

Back 123

amplitude modulation

Front 124

What does "FM" stand for?

Back 124

frequency modulation

Front 125

The half life of radon is about

Back 125

3 - 4 days

Front 126

What is the difference between 63 CU and 65 CU?

Back 126

two neutrons

Front 127

Which is not an electro magnetic wave?

Back 127

sound

Front 128

Lead enters the atmosphere as a particulate pollutant. This is a problem because it

Back 128

causes central nervous system malfunction in humans

Front 129

A great deal of indoor air pollution comes from

Back 129

carpets and furniture

Front 130

In developed countries, the two most deadly sources of indoor pollution are

Back 130

radon and cigarette smoke

Front 131

Bacteria and fungal spores can be included as

Back 131

contributors to indoor pollutants

Front 132

Particulate matter dispersed as aerosols

Back 132

may cause damage to respiratory tissues when inhaled

Front 133

The long term health effects of indoor air pollution

Back 133

are not well understood; studies are under way

Front 134

Factor influencing home environment health risks include

Back 134

all of the above

Front 135

Which of the following groups is considered to be the most susceptible to harmful products in the home

Back 135

young teenagers and older adults

Front 136

Which of the following is a health hazard often found in kitchen cabinets and furniture?

Back 136

formaldehyde

Front 137

Which of the following is a naturally occurring health risk that may be present in a home?

Back 137

radon

Front 138

Poor home maintenance often contribute to which health hazard?

Back 138

mold

Front 139

Health effects from indoor air pollutants are complicated because

Back 139

sensitivity varies tremendously from person to person

Front 140

Which of the following affect the energy, durability, and comfort performance of a building?

Back 140

use of building materials to avoid destructive elements of sun, wind, and moisture

Front 141

Which homes tend to contain more hazardous building materials?

Back 141

older homes

Front 142

Excess moisture within a building can lead to

Back 142

all of the above

Front 143

Mold growth can begin on a damp carpet within

Back 143

1-2 days

Front 144

In order to protect the occupant's health, it is important to make a house as air tight as possible

Back 144

false

Front 145

Which of the following diseases is not associated with cigarette smoking?

Back 145

colon cancer

Front 146

Which of the following is a source of indoor air pollution?

Back 146

all of the above

Front 147

Air pollution may result in adverse effects upon

Back 147

all of the above

Front 148

The driving force for radon to enter homes by easily seeping through cracks and joints is

Back 148

pressure difference

Front 149

Fluids such as gasoline, paint solvents, and organic cleaning solutions release

Back 149

volatile organic compounds

Front 150

The largest source of volatile organic compounds as air pollutants is what?

Back 150

industry