Question 1

How is global temperature estimated from ice samples?

Accepted Answer

A) by looking at the types of gases dissolved in the ice 
B) by measuring the density of the ice 
C) by measuring the depth of the ice 
D) by looking at the pollen trapped in the air pockets in the ice 
E) none of the above 
A) by looking at the types of gases dissolved in the ice 
B) by measuring the density of the ice 
C) by measuring the depth of the ice 
D) by looking at the pollen trapped in the air pockets in the ice 
E) none of the above

Question 2

What is the cause of the greenhouse effect?

Accepted Answer

A) different materials absorb, reflect and transmit electromagnetic radiation differently 
B) excess gases in the atmosphere 
C) solar radiation causing chemical changes in the concentration of gases in the atmosphere 
D) human activities changing the chemical makeup of the atmosphere 
E) none of the above 
A) different materials absorb, reflect and transmit electromagnetic radiation differently 
B) excess gases in the atmosphere 
C) solar radiation causing chemical changes in the concentration of gases in the atmosphere 
D) human activities changing the chemical makeup of the atmosphere 
E) none of the above

Question 3

Which of the following statements is untrue?

Accepted Answer

A) The stratosphere gets warmer as altitude increases. 
B) The troposphere gets colder as altitude increases. 
C) The amount of oxygen in the troposphere decreases as altitude increases. 
D) None of the above are true. 
E) Only a and b are untrue 
A) The stratosphere gets warmer as altitude increases. 
B) The troposphere gets colder as altitude increases. 
C) The amount of oxygen in the troposphere decreases as altitude increases. 
D) None of the above are true. 
E) Only a and b are untrue

Question 4

Which natural law is illustrated by the fact that the fertilizers we use can contaminate the water supply?

Accepted Answer

A) law of conservation of mass 
B) law of definite proportions 
C) law of the conservation of energy 
D) Avogadro's law 
E) all of the above 
A) law of conservation of mass 
B) law of definite proportions 
C) law of the conservation of energy 
D) Avogadro's law 
E) all of the above

Question 5

Which of the following is not a step in the water cycle?

Accepted Answer

A) consumption of water 
B) sweating 
C) evaporation 
D) precipitation 
E) All of the above are steps in the water cycle. 
A) consumption of water 
B) sweating 
C) evaporation 
D) precipitation 
E) All of the above are steps in the water cycle.

Question 6

Why might helium be present only in small amounts in the atmosphere?

Accepted Answer

A) It is so light that it can escape the atmosphere. 
B) It is not found much in nature. 
C) It is not produced in nuclear transformations. 
D) It is too reactive and is quickly converted into minerals. 
E) none of the above 
A) It is so light that it can escape the atmosphere. 
B) It is not found much in nature. 
C) It is not produced in nuclear transformations. 
D) It is too reactive and is quickly converted into minerals. 
E) none of the above

Question 7

The atmosphere is primarily nitrogen,   , and oxygen,   . Under what conditions do these two materials react to form nitrogen monoxide, NO?

Accepted Answer

A) when by the intense heat of a lightning bolt 
B) when found within the cells of photosynthetic plants 
C) when adsorbed onto the surface of stratospheric ice crystals 
D) when in regions of high atmospheric pressure 
A) when by the intense heat of a lightning bolt 
B) when found within the cells of photosynthetic plants 
C) when adsorbed onto the surface of stratospheric ice crystals 
D) when in regions of high atmospheric pressure

Question 8

Which of the following gases makes up the bulk of the atmosphere?

Accepted Answer

A) N2 
B) O2 
C) H2 
D) CH4 
E) H2O 
A) N2 
B) O2 
C) H2 
D) CH4 
E) H2O

Question 9

Burning coal produces sulfur oxides. Where did the sulfur originate?

Accepted Answer

A) from the photosynthetic plants from which the coal was made millions of years ago 
B) from the atmospheric sulfur oxides that photosynthetic plants use to make their amino acids cysteine and methionine 
C) from volcanos that belch sulfur into the atmosphere 
D) from nuclear fusion occurring in stars that exploded billions of years ago 
A) from the photosynthetic plants from which the coal was made millions of years ago 
B) from the atmospheric sulfur oxides that photosynthetic plants use to make their amino acids cysteine and methionine 
C) from volcanos that belch sulfur into the atmosphere 
D) from nuclear fusion occurring in stars that exploded billions of years ago

Question 10

How does the density of air in Death Valley, which is 86 meters below sea level, compare with the density of air at sea level?

Accepted Answer

A) The density is about the same because the density of air is greatest at sea level. 
B) The atmospheric pressure in Death Valley may be greater, but not necessarily the air density. 
C) It would depend upon the temperature within Death Valley. 
D) The air density you experience in Death Valley is greater because there are more air molecules above you. 
A) The density is about the same because the density of air is greatest at sea level. 
B) The atmospheric pressure in Death Valley may be greater, but not necessarily the air density. 
C) It would depend upon the temperature within Death Valley. 
D) The air density you experience in Death Valley is greater because there are more air molecules above you.

Question 11

Are polar or nonpolar chemical compounds more often found in a leachate?

Accepted Answer

A) polar compounds 
B) nonpolar compounds 
C) both polar and nonpolar compounds 
D) neither polar nor nonpolar compounds 
A) polar compounds 
B) nonpolar compounds 
C) both polar and nonpolar compounds 
D) neither polar nor nonpolar compounds

Question 12

The surface of the moon is 200°C during the day but -270°C during the night. Why?

Accepted Answer

A) There is nothing to reflect the radiation absorbed by the ground, so it all escapes into space. 
B) The moon soil has a lower heat capacity than the earth's soil. 
C) There is a temperature inversion taking place. 
D) all of the above 
E) none of the above 
A) There is nothing to reflect the radiation absorbed by the ground, so it all escapes into space. 
B) The moon soil has a lower heat capacity than the earth's soil. 
C) There is a temperature inversion taking place. 
D) all of the above 
E) none of the above

Question 13

Which of the following types of contamination is most detrimental to fresh water supply?

Accepted Answer

A) contaminated groundwater 
B) a contaminated lake 
C) a contaminated river 
D) a point source of pollution 
E) All of the above are equally problematic. 
A) contaminated groundwater 
B) a contaminated lake 
C) a contaminated river 
D) a point source of pollution 
E) All of the above are equally problematic.

Question 14

What excites the gas molecules of the atmosphere and provides them with kinetic energy?

Accepted Answer

A) solar radiation 
B) fission radiation 
C) geothermal energy 
D) wind energy 
E) none of the above 
A) solar radiation 
B) fission radiation 
C) geothermal energy 
D) wind energy 
E) none of the above

Question 15

Why is secondary treatment often needed for sewage?

Accepted Answer

A) The dissolved organics are too high and lead to bacterial growth. 
B) The solution is contaminated with dangerous bacteria. 
C) There are too many dissolved inorganic compounds. 
D) There are too many finely divided particles that need to be filtered. 
E) none of the above 
A) The dissolved organics are too high and lead to bacterial growth. 
B) The solution is contaminated with dangerous bacteria. 
C) There are too many dissolved inorganic compounds. 
D) There are too many finely divided particles that need to be filtered. 
E) none of the above

Question 16

Where does most of the solid mass of raw sewage end up after being collected at a treatment facility?

Accepted Answer

A) It is injected into the water table. 
B) It is buried in landfills. 
C) It is sold to farmers for fertilizer. 
D) It is tapped for the generation of methane gas. 
A) It is injected into the water table. 
B) It is buried in landfills. 
C) It is sold to farmers for fertilizer. 
D) It is tapped for the generation of methane gas.

Question 17

What is an advantage of using chlorine gas to disinfect drinking water supplies?

Accepted Answer

A) It provides residual protection against pathogens. 
B) It gives the water a fresh taste. 
C) Residual chlorine in water helps to whiten teeth. 
D) Excess chlorine is absorbed in our bodies as a mineral supplement. 
A) It provides residual protection against pathogens. 
B) It gives the water a fresh taste. 
C) Residual chlorine in water helps to whiten teeth. 
D) Excess chlorine is absorbed in our bodies as a mineral supplement.

Question 18

Average global temperatures from thousands of years ago can be determined by measuring which of the following from a glacial ice core?

Accepted Answer

A) The half-life of radioactive water. 
B) The size of ice crystals. 
C) The ratio of deuterium to hydrogen. 
D) The percentage of atmospheric nitrogen. 
A) The half-life of radioactive water. 
B) The size of ice crystals. 
C) The ratio of deuterium to hydrogen. 
D) The percentage of atmospheric nitrogen.

Question 19

Which of the following gases has the smallest concentration in the atmosphere?

Accepted Answer

A) N2 
B) O2 
C) H2 
D) CH4 
E) H2O 
A) N2 
B) O2 
C) H2 
D) CH4 
E) H2O

Question 20

Why do your ears sometimes pop when you go up in an airplane?

Accepted Answer

A) There are fewer air molecules pushing against the outer surface of your ear drum. 
B) There are more air molecules pushing against the outer surface of your ear drum. 
C) The atmospheric pressure is changing. 
D) You probably haven't removed your headphones. 
A) There are fewer air molecules pushing against the outer surface of your ear drum. 
B) There are more air molecules pushing against the outer surface of your ear drum. 
C) The atmospheric pressure is changing. 
D) You probably haven't removed your headphones.

How is global temperature estimated from ice samples?

What is the cause of the greenhouse effect?

Which of the following statements is untrue?

Which natural law is illustrated by the fact that the fertilizers we use can contaminate the water supply?

Which of the following is not a step in the water cycle?

Why might helium be present only in small amounts in the atmosphere?

The atmosphere is primarily nitrogen, , and oxygen, . Under what conditions do these two materials react to form nitrogen monoxide, NO?

Which of the following gases makes up the bulk of the atmosphere?

Burning coal produces sulfur oxides. Where did the sulfur originate?

How does the density of air in Death Valley, which is 86 meters below sea level, compare with the density of air at sea level?

Are polar or nonpolar chemical compounds more often found in a leachate?

The surface of the moon is 200°C during the day but -270°C during the night. Why?

Which of the following types of contamination is most detrimental to fresh water supply?

What excites the gas molecules of the atmosphere and provides them with kinetic energy?

Why is secondary treatment often needed for sewage?

Where does most of the solid mass of raw sewage end up after being collected at a treatment facility?

What is an advantage of using chlorine gas to disinfect drinking water supplies?

Average global temperatures from thousands of years ago can be determined by measuring which of the following from a glacial ice core?

Which of the following gases has the smallest concentration in the atmosphere?

Why do your ears sometimes pop when you go up in an airplane?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Capturing Energy

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Exam 16: Protection Water and Air Resources

How is global temperature estimated from ice samples?

What is the cause of the greenhouse effect?

Which of the following statements is untrue?

Which natural law is illustrated by the fact that the fertilizers we use can contaminate the water supply?

Which of the following is not a step in the water cycle?

Why might helium be present only in small amounts in the atmosphere?

The atmosphere is primarily nitrogen, , and oxygen, . Under what conditions do these two materials react to form nitrogen monoxide, NO?

Which of the following gases makes up the bulk of the atmosphere?

Burning coal produces sulfur oxides. Where did the sulfur originate?

How does the density of air in Death Valley, which is 86 meters below sea level, compare with the density of air at sea level?

Are polar or nonpolar chemical compounds more often found in a leachate?

The surface of the moon is 200°C during the day but -270°C during the night. Why?

Which of the following types of contamination is most detrimental to fresh water supply?

What excites the gas molecules of the atmosphere and provides them with kinetic energy?

Why is secondary treatment often needed for sewage?

Where does most of the solid mass of raw sewage end up after being collected at a treatment facility?

What is an advantage of using chlorine gas to disinfect drinking water supplies?

Average global temperatures from thousands of years ago can be determined by measuring which of the following from a glacial ice core?

Which of the following gases has the smallest concentration in the atmosphere?

Why do your ears sometimes pop when you go up in an airplane?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Capturing Energy

Filters