Question 1

How are scientists determining atmospheric ozone levels?

Accepted Answer

A)  measuring spectral lines collected from satellite-based sensors 
B)  collecting samples with specially outfitted airplanes 
C)  measuring spectral lines collected at ground-based sites 
D)  measuring spectral lines collected from special aircraft 
E)  all of these are correct 
A)  measuring spectral lines collected from satellite-based sensors 
B)  collecting samples with specially outfitted airplanes 
C)  measuring spectral lines collected at ground-based sites 
D)  measuring spectral lines collected from special aircraft 
E)  all of these are correct E

Question 2

According to the equilibrium hypothesis, introducing a new species to an isolated ecosystem will

Accepted Answer

A)  cause another species to go extinct. 
B)  cause a depletion of oxygen. 
C)  make other species stronger by increasing competition. 
D)  add to the diversity of the ecosystem 
E)  have no impact on the ecosystem. 
A)  cause another species to go extinct. 
B)  cause a depletion of oxygen. 
C)  make other species stronger by increasing competition. 
D)  add to the diversity of the ecosystem 
E)  have no impact on the ecosystem. A

Question 3

In the "Lake Victoria disaster," what unintended consequences beyond the lake itself did the introduction of large fish cause?

Accepted Answer

When the large Nile perch was introduced to the lake and it took over the lake from the smaller native fish who kept the snail population in check, snails multiplied greatly and spread disease among the human population around the lake. Also, larger fish require more cooking, so the native population cut down almost all the trees for cooking fires, causing an ecosystem disaster beyond the lake.

Question 4

Why do scientists think that global warming is occurring?

Accepted Answer

A)  20 of the 25 warmest years in recorded history occurred since 1980 
B)  sea level is rising 
C)  glaciers are melting 
D)  1990s was the warmest decade on record 
E)  all of these are correct 
A)  20 of the 25 warmest years in recorded history occurred since 1980 
B)  sea level is rising 
C)  glaciers are melting 
D)  1990s was the warmest decade on record 
E)  all of these are correct

Question 5

Why is the ozone layer so vital to life on Earth?

Accepted Answer

The ozone layer in the upper a

Question 6

How are CFCs dangerous to the environment?

Accepted Answer

A)  causing acid rain 
B)  blocking sunlight 
C)  breaking O3 to create O2 
D)  accelerating glaciations 
E)  increasing cloudiness 
A)  causing acid rain 
B)  blocking sunlight 
C)  breaking O3 to create O2 
D)  accelerating glaciations 
E)  increasing cloudiness

Question 7

Why is the ozone hole located where it is?

Accepted Answer

Over Antarctica, where the ozone hole wa

Question 8

What was the main topic of the Kyoto protocol, which the U.S. refused to sign?

Accepted Answer

A)  protection of the endangered Kyoto lizard 
B)  depletion of ozone concentrations over Alaska 
C)  phasing out of CFCs in manufacturing 
D)  decrease in CO2 emissions on a global scale 
E)  redesigning nuclear plants 
A)  protection of the endangered Kyoto lizard 
B)  depletion of ozone concentrations over Alaska 
C)  phasing out of CFCs in manufacturing 
D)  decrease in CO2 emissions on a global scale 
E)  redesigning nuclear plants

Question 9

How can states with automobile air pollution problems deal with the problem of air pollution?

Accepted Answer

California, for example, passed legislat

Question 10

What determines the acidity of normal rainfall?

Accepted Answer

Although nitrogen and sulfur c

Question 11

The flow of energy in an ecosystem

Accepted Answer

A)  decreases by 90% at each trophic level. 
B)  is a discrete amount transferred without change. 
C)  transfers from plants to carnivores to herbivores. 
D)  is wasted by the decomposers. 
E)  involves all of these. 
A)  decreases by 90% at each trophic level. 
B)  is a discrete amount transferred without change. 
C)  transfers from plants to carnivores to herbivores. 
D)  is wasted by the decomposers. 
E)  involves all of these.

Question 12

How far above the Earth would we find the highest concentration of "good" ozone?

Accepted Answer

A)  50 miles 
B)  20 miles 
C)  10 miles 
D)  10,000 feet 
E)  sea level 
A)  50 miles 
B)  20 miles 
C)  10 miles 
D)  10,000 feet 
E)  sea level

Question 13

What did Robert MacArthur and Edward O. Wilson learn about island populations?

Accepted Answer

Whenever a new species migrates to an is

Question 14

Is acid rain only common in areas of industrialization?

Accepted Answer

Higher smoke stacks, which were built so

Question 15

Explain how ozone can be both good and bad for the ecology of the planet and especially humans living on the surface.

Accepted Answer

Good ozone exists in the stratosphere ma

Question 16

Which are products of burning fossil fuels in the atmosphere?

Accepted Answer

A)  carbon dioxide and water vapor 
B)  nitrogen oxides and sulfur compounds 
C)  water vapor and sulfur compounds 
D)  carbon dioxide and hydrocarbons 
E)  all of these are correct. 
A)  carbon dioxide and water vapor 
B)  nitrogen oxides and sulfur compounds 
C)  water vapor and sulfur compounds 
D)  carbon dioxide and hydrocarbons 
E)  all of these are correct.

Question 17

Can a single lake be an ecosystem?

Accepted Answer

An ecosystem includes all the different

Question 18

Why must energy that flows through an ecosystem be replaced continually?

Accepted Answer

The energy transmission from l

Question 19

Research by E.O. Wilson and Daniel Simberloff supported the theory of island biogeography when, at the end of the experiment,

Accepted Answer

A)  their mangrove research site failed to return to its status as a viable ecosystem. 
B)  a hurricane destroyed the native population of brown lizards on the mangrove island. 
C)  the island biota were replaced by similar but different species of animals. 
D)  the state of Florida fined the research team for breaking environmental laws. 
E)  the mangrove research site flourished with the biodiversity that came from introduction of new species. 
A)  their mangrove research site failed to return to its status as a viable ecosystem. 
B)  a hurricane destroyed the native population of brown lizards on the mangrove island. 
C)  the island biota were replaced by similar but different species of animals. 
D)  the state of Florida fined the research team for breaking environmental laws. 
E)  the mangrove research site flourished with the biodiversity that came from introduction of new species.

Question 20

Acid rain is known to cause problems by

Accepted Answer

A)  causing population explosions of deer species. 
B)  triggering glaciations and ice sheets. 
C)  bleaching chlorophyll from green plants. 
D)  destroying limestone statues and buildings. 
E)  accelerating global warming. 
A)  causing population explosions of deer species. 
B)  triggering glaciations and ice sheets. 
C)  bleaching chlorophyll from green plants. 
D)  destroying limestone statues and buildings. 
E)  accelerating global warming.

Exam 19: Ecology, Ecosystems, and the Environment: Are Human Activities Affecting the Global Environment

How are scientists determining atmospheric ozone levels?

According to the equilibrium hypothesis, introducing a new species to an isolated ecosystem will

In the "Lake Victoria disaster," what unintended consequences beyond the lake itself did the introduction of large fish cause?

Why do scientists think that global warming is occurring?

Why is the ozone layer so vital to life on Earth?

How are CFCs dangerous to the environment?

Why is the ozone hole located where it is?

What was the main topic of the Kyoto protocol, which the U.S. refused to sign?

How can states with automobile air pollution problems deal with the problem of air pollution?

What determines the acidity of normal rainfall?

The flow of energy in an ecosystem

How far above the Earth would we find the highest concentration of "good" ozone?

What did Robert MacArthur and Edward O. Wilson learn about island populations?

Is acid rain only common in areas of industrialization?

Explain how ozone can be both good and bad for the ecology of the planet and especially humans living on the surface.

Which are products of burning fossil fuels in the atmosphere?

Can a single lake be an ecosystem?

Why must energy that flows through an ecosystem be replaced continually?

Research by E.O. Wilson and Daniel Simberloff supported the theory of island biogeography when, at the end of the experiment,

Acid rain is known to cause problems by

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