Question 1

Describe the oxygen cycle.Use specific examples to illustrate the cyclic nature of the cycle.

Accepted Answer

The oxygen cycle is the process by which

Question 2

Acid rain is precipitation with a pH

Accepted Answer

A) above 11.5. 
B) above 8.2. 
C) below 5.6. 
D) below 3.6. 
A) above 11.5. 
B) above 8.2. 
C) below 5.6. 
D) below 3.6.

Question 3

The EPA lists six criteria pollutants.Which of the following is NOT listed by the EPA as a criteria pollutant?

Accepted Answer

A) nitrogen dioxide 
B) sulfur dioxide 
C) hydrocarbons 
D) lead 
A) nitrogen dioxide 
B) sulfur dioxide 
C) hydrocarbons 
D) lead

Question 4

Without the greenhouse effect,

Accepted Answer

A) the Earth would be much colder. 
B) no precipitation would fall. 
C) there would be no change of season. 
D) more earthquakes would occur. 
A) the Earth would be much colder. 
B) no precipitation would fall. 
C) there would be no change of season. 
D) more earthquakes would occur.

Question 5

The presence of nitrogen dioxide in smog is most easily recognized by

Accepted Answer

A) color. 
B) low-hanging clouds. 
C) taste. 
D) rain. 
A) color. 
B) low-hanging clouds. 
C) taste. 
D) rain.

Question 6

The World Health Organization (WHO)rates which pollutant the worst?

Accepted Answer

A) methane 
B) chlorocarbons 
C) sulfur dioxide 
D) sulfur oxides 
A) methane 
B) chlorocarbons 
C) sulfur dioxide 
D) sulfur oxides

Question 7

Which of the following contributes least to the problem of photochemical smog?

Accepted Answer

A) nitrogen oxides emitted by cars 
B) hydrocarbons emitted by cars 
C) warm, sunny days 
D) cool, wet days 
A) nitrogen oxides emitted by cars 
B) hydrocarbons emitted by cars 
C) warm, sunny days 
D) cool, wet days

Question 8

Which of the following statements about catalytic converters is NOT correct?

Accepted Answer

A) The reaction surface area is unrelated to the efficiency of the converter. 
B) They use a metal catalyst such as Pt or Pd. 
C) They catalyze the conversion of hydrocarbons, carbon monoxide and nitrogen oxides to less harmful compounds. 
D) The catalyst adheres either to a honeycomb support or to small ceramic beads. 
A) The reaction surface area is unrelated to the efficiency of the converter. 
B) They use a metal catalyst such as Pt or Pd. 
C) They catalyze the conversion of hydrocarbons, carbon monoxide and nitrogen oxides to less harmful compounds. 
D) The catalyst adheres either to a honeycomb support or to small ceramic beads.

Question 9

Nitrogen can be fixed by lightning.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following human activities contributed to the pollution of our ancestral air?

Accepted Answer

A) Discovering, making, and using tools contributed to air pollution. 
B) The discovery and use of fire contributed to air pollution. 
C) The development of crop farming contributed to air pollution. 
D) All of these contributed to air pollution. 
A) Discovering, making, and using tools contributed to air pollution. 
B) The discovery and use of fire contributed to air pollution. 
C) The development of crop farming contributed to air pollution. 
D) All of these contributed to air pollution.

Question 11

The reaction 2 CaO(s)+ 2 SO₂(g)+ O₂(g)→ 2 CaSO₄(s)is the basis of

Accepted Answer

A) electrostatic precipitators. 
B) chemical SO₂ scrubbers. 
C) particulate removal. 
D) The reaction is the basis of all of the above. 
A) electrostatic precipitators. 
B) chemical SO₂ scrubbers. 
C) particulate removal. 
D) The reaction is the basis of all of the above.

Question 12

Which one of the following is NOT one of the principal components required for photochemical smog?

Accepted Answer

A) nitrogen oxides 
B) hydrocarbons 
C) sulfur dioxide 
D) sunshine 
A) nitrogen oxides 
B) hydrocarbons 
C) sulfur dioxide 
D) sunshine

Question 13

One of the results of ozone pollution is

Accepted Answer

A) destruction of bricks. 
B) decomposition of granite buildings. 
C) cracking of roads. 
D) extensive damage to crops. 
A) destruction of bricks. 
B) decomposition of granite buildings. 
C) cracking of roads. 
D) extensive damage to crops.

Question 14

The major source of photochemical smog is

Accepted Answer

A) automobile emissions. 
B) industrial emissions. 
C) fossil fuel power plant emissions. 
D) nuclear power plant emissions. 
A) automobile emissions. 
B) industrial emissions. 
C) fossil fuel power plant emissions. 
D) nuclear power plant emissions.

Question 15

In the stratosphere,oxygen (O₂)is converted to ozone (O₃)by high energy ultraviolet light.When the equation is written and balanced using whole number coefficients,the coefficient of ozone is

Accepted Answer

A) 4) 
B) 3) 
C) 2) 
D) 1) 
A) 4) 
B) 3) 
C) 2) 
D) 1)

Question 16

The smog in the Los Angeles basin has no effect on vegetation 130 miles away.

Accepted Answer

A) True 
 B)False

Question 17

It is easier to lower the emission of nitrogen oxides from cars than it is to lower the emission of carbon monoxide and hydrocarbons.

Accepted Answer

A) True 
 B)False

Question 18

"Pure" rainfall (rainfall undisturbed by human influences)has a pH of approximately 5.6.The pH of rain in some areas has been measured at 2.6.The acidity of this rain is

Accepted Answer

A) 0)3 times that of normal rain. 
B) 3 times that of normal rain. 
C) 300 times that of normal rain. 
D) 1000 times that of normal rain. 
A) 0)3 times that of normal rain. 
B) 3 times that of normal rain. 
C) 300 times that of normal rain. 
D) 1000 times that of normal rain.

Question 19

Kilauea volcano in Hawaii emits 200-300 tons of sulfur dioxide into the atmosphere each day.This is an example of

Accepted Answer

A) the impact of natural processes on the earth's environment. 
B) air pollution from a natural source. 
C) the magnitude of the chemistry associated with the environment. 
D) The Kilauea volcano is an example of all of the above. 
A) the impact of natural processes on the earth's environment. 
B) air pollution from a natural source. 
C) the magnitude of the chemistry associated with the environment. 
D) The Kilauea volcano is an example of all of the above.

Question 20

The World Health Organization estimates that over 3.0 million people die from indoor or outdoor air pollution every year.

Accepted Answer

A) True 
 B)False

Exam 13: Air

Describe the oxygen cycle.Use specific examples to illustrate the cyclic nature of the cycle.

Acid rain is precipitation with a pH

The EPA lists six criteria pollutants.Which of the following is NOT listed by the EPA as a criteria pollutant?

Without the greenhouse effect,

The presence of nitrogen dioxide in smog is most easily recognized by

The World Health Organization (WHO)rates which pollutant the worst?

Which of the following contributes least to the problem of photochemical smog?

Which of the following statements about catalytic converters is NOT correct?

Nitrogen can be fixed by lightning.

Which of the following human activities contributed to the pollution of our ancestral air?

The reaction 2 CaO(s)+ 2 SO₂(g)+ O₂(g)→ 2 CaSO₄(s)is the basis of

Which one of the following is NOT one of the principal components required for photochemical smog?

One of the results of ozone pollution is

The major source of photochemical smog is

In the stratosphere,oxygen (O₂)is converted to ozone (O₃)by high energy ultraviolet light.When the equation is written and balanced using whole number coefficients,the coefficient of ozone is

The smog in the Los Angeles basin has no effect on vegetation 130 miles away.

It is easier to lower the emission of nitrogen oxides from cars than it is to lower the emission of carbon monoxide and hydrocarbons.

"Pure" rainfall (rainfall undisturbed by human influences)has a pH of approximately 5.6.The pH of rain in some areas has been measured at 2.6.The acidity of this rain is

Kilauea volcano in Hawaii emits 200-300 tons of sulfur dioxide into the atmosphere each day.This is an example of

The World Health Organization estimates that over 3.0 million people die from indoor or outdoor air pollution every year.

Chemistry

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