Question 1

Which is true of Earth's atmosphere?

Accepted Answer

A) it is the sum of all the exhalations and inhalations of animals on Earth. 
B) we consider the top of the atmosphere to be about 10 km from Earth. 
C) it lets light through,but blocks out all other forms of radiation. 
D) its temperatures range from -90°C to 1200°C. 
E) The principle substance is air,a mixture of oxygen and argon gas. 
A) it is the sum of all the exhalations and inhalations of animals on Earth. 
B) we consider the top of the atmosphere to be about 10 km from Earth. 
C) it lets light through,but blocks out all other forms of radiation. 
D) its temperatures range from -90°C to 1200°C. 
E) The principle substance is air,a mixture of oxygen and argon gas.

Question 2

Carbon monoxide is potentially dangerous because it

Accepted Answer

A) replaces oxygen on red blood cells. 
B) causes cancer. 
C) causes birth defects. 
D) causes genetic mutations. 
E) causes blindness. 
A) replaces oxygen on red blood cells. 
B) causes cancer. 
C) causes birth defects. 
D) causes genetic mutations. 
E) causes blindness.

Question 3

The outermost region of the atmosphere,based on composition,is the

Accepted Answer

A) homosphere. 
B) heterosphere. 
C) troposphere. 
D) thermosphere. 
E) stratopause. 
A) homosphere. 
B) heterosphere. 
C) troposphere. 
D) thermosphere. 
E) stratopause.

Question 4

Rain with a pH of 3 is how many times more acidic than rain with a pH of 7?

Accepted Answer

A) 3 
B) 4 
C) 100 
D) 10 000 
E) 1 000 000 000 
A) 3 
B) 4 
C) 100 
D) 10 000 
E) 1 000 000 000

Question 5

What two pollutants react with water to produce acid rain?

Accepted Answer

A) sulfur oxides and nitrogen oxides. 
B) sulfur oxides and ozone. 
C) nitrogen oxides and ozone. 
D) sulfur oxides and PAN. 
E) sulfur oxides and carbon monoxide. 
A) sulfur oxides and nitrogen oxides. 
B) sulfur oxides and ozone. 
C) nitrogen oxides and ozone. 
D) sulfur oxides and PAN. 
E) sulfur oxides and carbon monoxide.

Question 6

Life is possible on Earth primarily because

Accepted Answer

A) gamma rays and X-rays reach the surface. 
B) the ozonosphere and ionosphere shield the surface from harmful radiation. 
C) variable gases of all types exist in the atmosphere. 
D) ultraviolet radiation reaches the surface. 
E) ozone is evenly mixed throughout all levels of the atmosphere. 
A) gamma rays and X-rays reach the surface. 
B) the ozonosphere and ionosphere shield the surface from harmful radiation. 
C) variable gases of all types exist in the atmosphere. 
D) ultraviolet radiation reaches the surface. 
E) ozone is evenly mixed throughout all levels of the atmosphere.

Question 7

Noctilucent clouds consist of ice crystals that form around

Accepted Answer

A) pollen grains. 
B) clay particles derived from deserts. 
C) meteorite dust. 
D) salt crystals from the sea. 
E) volcanic ash. 
A) pollen grains. 
B) clay particles derived from deserts. 
C) meteorite dust. 
D) salt crystals from the sea. 
E) volcanic ash.

Question 8

A decline in sulfur dioxide has led to a lower pH in precipitation in the Mid-Atlantic states.

Accepted Answer

A) True 
 B)False

Question 9

Temperatures increase  with increasing altitude in what two atmospheric layers?

Accepted Answer

A) troposphere and mesosphere. 
B) troposphere and stratosphere. 
C) stratosphere and mesosphere. 
D) stratosphere and thermosphere. 
E) mesosphere and thermosphere. 
A) troposphere and mesosphere. 
B) troposphere and stratosphere. 
C) stratosphere and mesosphere. 
D) stratosphere and thermosphere. 
E) mesosphere and thermosphere.

Question 10

The heterosphere has a layered structure,whereas the homosphere occurs as an even mixture of gases.

Accepted Answer

A) True 
 B)False

Question 11

In the lower atmosphere,H₂SO₄ $\mathrm { H } _ { 2 }$ $\mathrm { SO } _ { 4 }$

Accepted Answer

A) is formed from photochemical reactions. 
B) is related to the problem of acid deposition. 
C) is a problem that only occurred during the first half of this century. 
D) forms by a combination of O₂ and NO₂. 
E) cannot form due to the density of the atmosphere. 
A) is formed from photochemical reactions. 
B) is related to the problem of acid deposition. 
C) is a problem that only occurred during the first half of this century. 
D) forms by a combination of O₂ and NO₂. 
E) cannot form due to the density of the atmosphere.

Question 12

Which of the gases listed below has accumulated in the atmosphere as a result of biological processes?

Accepted Answer

A) argon 
B) oxygen 
C) nitrogen 
D) water vapor 
E) krypton 
A) argon 
B) oxygen 
C) nitrogen 
D) water vapor 
E) krypton

Question 13

About half of Earth's crust consists of compounds containing

Accepted Answer

A) nitrogen. 
B) argon. 
C) carbon dioxide. 
D) oxygen. 
E) ozone 
A) nitrogen. 
B) argon. 
C) carbon dioxide. 
D) oxygen. 
E) ozone

Question 14

The lower the pH of a liquid

Accepted Answer

A) the more acidic it is. 
B) the more basic (alkaline)it is. 
C) the more neutral it is. 
D) pH is not a measure of acidity it is a measure of chemical reactivity 
A) the more acidic it is. 
B) the more basic (alkaline)it is. 
C) the more neutral it is. 
D) pH is not a measure of acidity it is a measure of chemical reactivity

Question 15

List and describe at least five natural sources of air pollution,as well as the source and effects of at least eight human-generated air pollutants.

Accepted Answer

The answer of List and describe at least five natural...

Question 16

Which of the following statements about ozone is  false 
?

Accepted Answer

A) ozone in the stratosphere  protects human health. 
B) ozone in the lower  atmosphere protects human health. 
C) anthropogenically-produced ozone in the lower atmosphere  cannotoffset the loss of ozone that is destroyed by CFCs in the upper atmosphere. 
D) ozone is a highly reactive,unstable gas. 
E) ozone damages plants in low concentrations. 
A) ozone in the stratosphere  protects human health. 
B) ozone in the lower  atmosphere protects human health. 
C) anthropogenically-produced ozone in the lower atmosphere  cannotoffset the loss of ozone that is destroyed by CFCs in the upper atmosphere. 
D) ozone is a highly reactive,unstable gas. 
E) ozone damages plants in low concentrations.

Question 17

The fact that nature produces more pollution than humans do means that anthropogenic pollution is insignificant,and we need not worry about it.

Accepted Answer

A) True 
 B)False

Question 18

Which stable (nonvariable)gas in the atmosphere is derived from the radioactive decay of potassium-40 (⁴⁰K)?

Accepted Answer

A) oxygen 
B) krypton 
C) argon 
D) carbon dioxide 
E) sodium 
A) oxygen 
B) krypton 
C) argon 
D) carbon dioxide 
E) sodium

Question 19

A by-product of photosynthesis is

Accepted Answer

A) nitrogen. 
B) argon. 
C) oxygen. 
D) xenon. 
E) fluorine 
A) nitrogen. 
B) argon. 
C) oxygen. 
D) xenon. 
E) fluorine

Question 20

Approximately fifty percent of the atmosphere is compressed by gravity below an elevation of 5500 m.

Accepted Answer

A) True 
 B)False

Exam 3: Earth's Modern Atmosphere

Which is true of Earth's atmosphere?

Carbon monoxide is potentially dangerous because it

The outermost region of the atmosphere,based on composition,is the

Rain with a pH of 3 is how many times more acidic than rain with a pH of 7?

What two pollutants react with water to produce acid rain?

Life is possible on Earth primarily because

Noctilucent clouds consist of ice crystals that form around

A decline in sulfur dioxide has led to a lower pH in precipitation in the Mid-Atlantic states.

Temperatures increase with increasing altitude in what two atmospheric layers?

The heterosphere has a layered structure,whereas the homosphere occurs as an even mixture of gases.

In the lower atmosphere,H₂SO₄ H2\mathrm { H } _ { 2 }H2​ SO4\mathrm { SO } _ { 4 }SO4​

Which of the gases listed below has accumulated in the atmosphere as a result of biological processes?

About half of Earth's crust consists of compounds containing

The lower the pH of a liquid

List and describe at least five natural sources of air pollution,as well as the source and effects of at least eight human-generated air pollutants.

Which of the following statements about ozone is false ?

The fact that nature produces more pollution than humans do means that anthropogenic pollution is insignificant,and we need not worry about it.

Which stable (nonvariable)gas in the atmosphere is derived from the radioactive decay of potassium-40 (⁴⁰K)?

A by-product of photosynthesis is

Approximately fifty percent of the atmosphere is compressed by gravity below an elevation of 5500 m.

Essentials of Geography

Solar Energy to Earth and the Seasons

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

Eolian Processes and Arid Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Earth and the Human Denominator

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In the lower atmosphere,H₂SO₄ $\mathrm { H } _ { 2 }$ $\mathrm { SO } _ { 4 }$