Question 1

DNA,the genetic material of living organisms,is damaged by light in the

Accepted Answer

A) visible region of the spectrum. 
B) ultraviolet region,especially below a wavelength of 320 nm. 
C) ultraviolet region,especially above a wavelength of 340 nm. 
D) infrared region of the spectrum. 
A) visible region of the spectrum. 
B) ultraviolet region,especially below a wavelength of 320 nm. 
C) ultraviolet region,especially above a wavelength of 340 nm. 
D) infrared region of the spectrum.

Question 2

Ozone in our atmosphere is important because it

Accepted Answer

A) absorbs some UV radiation. 
B) helps trees grow. 
C) reacts with excess CO2. 
D) reflects IR radiation. 
A) absorbs some UV radiation. 
B) helps trees grow. 
C) reacts with excess CO2. 
D) reflects IR radiation.

Question 3

Why are HFCs inappropriate for long-term replacement of CFCs?

Accepted Answer

A) They are flammable 
B) They are very toxic 
C) They absorb infrared radiation 
D) They are an appropriate replacement 
A) They are flammable 
B) They are very toxic 
C) They absorb infrared radiation 
D) They are an appropriate replacement

Question 4

Which is correct?

Accepted Answer

A) Ozone forms by combining an oxygen atom with an oxygen molecule 
B) There is a dynamic steady state of ozone in the stratosphere 
C) UV radiation will dissociate ozone into an oxygen atom and an oxygen molecule 
D) All of these choices are correct 
A) Ozone forms by combining an oxygen atom with an oxygen molecule 
B) There is a dynamic steady state of ozone in the stratosphere 
C) UV radiation will dissociate ozone into an oxygen atom and an oxygen molecule 
D) All of these choices are correct

Question 5

What is special about the South Pole versus the North Pole that leads to ozone depletion only at the south Pole?

Accepted Answer

A) Ozone molecules are broken up by magnetic forces at the South Pole 
B) The atmosphere is colder at the North Pole than at the South Pole 
C) Polar stratospheric clouds form almost exclusively at the South Pole 
D) There is more land mass at the South Pole than at the North Pole 
A) Ozone molecules are broken up by magnetic forces at the South Pole 
B) The atmosphere is colder at the North Pole than at the South Pole 
C) Polar stratospheric clouds form almost exclusively at the South Pole 
D) There is more land mass at the South Pole than at the North Pole

Question 6

What is the relationship between stratospheric levels of atomic chlorine and ozone?

Accepted Answer

A) As chlorine increases,ozone increases 
B) As chlorine increases,ozone decreases 
C) As chlorine changes,the effect on the ozone level is unpredictable 
D) As chlorine changes,there is no effect of the ozone level 
A) As chlorine increases,ozone increases 
B) As chlorine increases,ozone decreases 
C) As chlorine changes,the effect on the ozone level is unpredictable 
D) As chlorine changes,there is no effect of the ozone level

Question 7

The O2 molecule breaks apart at lower wavelengths than the O3 molecule.What is the main reason for this? (Hint: Draw the Lewis structures. )

Accepted Answer

A) O2 is more reactive than O3 
B) O3 is more reactive than O2 
C) The average bond in O3 is shorter and stronger than that of O2 
D) The average bond in O2 is shorter and stronger than that of O3 
A) O2 is more reactive than O3 
B) O3 is more reactive than O2 
C) The average bond in O3 is shorter and stronger than that of O2 
D) The average bond in O2 is shorter and stronger than that of O3

Question 8

Wavelength is the

Accepted Answer

A) number of waves passing a fixed point in one second. 
B) height of the wave. 
C) distance between successive peaks in a wave. 
D) distance between a peak of one wave and the next trough. 
A) number of waves passing a fixed point in one second. 
B) height of the wave. 
C) distance between successive peaks in a wave. 
D) distance between a peak of one wave and the next trough.

Question 9

WUKF FM transmits at 93.5 MHz.What is the wavelength of the electromagnetic radiation that carries the station's signal?

Accepted Answer

A) 6.42 × 10¯9 m 
B) 3.21 m 
C) 3.21 × 106 m 
D) 3.12 × 1015 m 
A) 6.42 × 10¯9 m 
B) 3.21 m 
C) 3.21 × 106 m 
D) 3.12 × 1015 m

Question 10

Arrange these types of radiation in order of increasing energy per photon: gamma rays,infrared radiation,radio waves,visible light,UV (ultra violet).

Accepted Answer

A) Radio waves < visible light < UV < infrared radiation < gamma rays 
B) Radio waves < infrared radiation < visible light < UV < gamma rays 
C) Infrared radiation < radio waves < visible light < UV < gamma rays 
D) Gamma rays < infrared radiation < UV < radio waves < visible light 
A) Radio waves < visible light < UV < infrared radiation < gamma rays 
B) Radio waves < infrared radiation < visible light < UV < gamma rays 
C) Infrared radiation < radio waves < visible light < UV < gamma rays 
D) Gamma rays < infrared radiation < UV < radio waves < visible light

DNA,the genetic material of living organisms,is damaged by light in the

Ozone in our atmosphere is important because it

Why are HFCs inappropriate for long-term replacement of CFCs?

Which is correct?

What is special about the South Pole versus the North Pole that leads to ozone depletion only at the south Pole?

What is the relationship between stratospheric levels of atomic chlorine and ozone?

The O₂ molecule breaks apart at lower wavelengths than the O₃ molecule.What is the main reason for this? (Hint: Draw the Lewis structures. )

Wavelength is the

WUKF FM transmits at 93.5 MHz.What is the wavelength of the electromagnetic radiation that carries the station's signal?

Arrange these types of radiation in order of increasing energy per photon: gamma rays,infrared radiation,radio waves,visible light,UV (ultra violet).

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Exam 3: Radiation From the Sun

DNA,the genetic material of living organisms,is damaged by light in the

Ozone in our atmosphere is important because it

Why are HFCs inappropriate for long-term replacement of CFCs?

Which is correct?

What is special about the South Pole versus the North Pole that leads to ozone depletion only at the south Pole?

What is the relationship between stratospheric levels of atomic chlorine and ozone?

The O2 molecule breaks apart at lower wavelengths than the O3 molecule.What is the main reason for this? (Hint: Draw the Lewis structures. )

Wavelength is the

WUKF FM transmits at 93.5 MHz.What is the wavelength of the electromagnetic radiation that carries the station's signal?

Arrange these types of radiation in order of increasing energy per photon: gamma rays,infrared radiation,radio waves,visible light,UV (ultra violet).

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters

The O₂ molecule breaks apart at lower wavelengths than the O₃ molecule.What is the main reason for this? (Hint: Draw the Lewis structures. )