Cumulative Exam — Cumulative exam Answers

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1
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Which of the following is true about glass recycling?

A
Recycling glass reduces the rate of deforestation.
B
Recycling glass eliminates greenhouse gas emissions.
C
Recycling glass is an energy-saving practice.
D
Recycling glass has an incredibly short turn around time.
2
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Arboreal animals are animals that _______.

A
rely on trees for food
B
live in trees
C
are harmful to trees
D
none of the above
3

Which of the following is a negative consequence of scientific advancements on society?

A
increased life expectancy
B
increased pollution
C
new energy resources
D
all of the above
5

The trend of declining ecosystem resource availability and increasing demand for these resources can best be countered by _______.

A
increasing the supply of ecosystem resources
B
decreasing the demand for ecosystem resources
C
applying sustainable development practices
D
developing new technologies for resource collection
6

The high productivity of American agriculture is exemplified by _______.

A
low crop yields per farm worker
B
high crop yields per farm worker
C
the small cultivated area per inhabitant
D
the small cultivated area per farmer
8

When is the carbon stored in plants released?

A
during cellular respiration
B
during photosynthesis
C
when they die
D
none of the above
10

Why has the spread of the herbicide-resistant hydrilla through Florida’s waterways resulted in them no longer being navigable by most boats?

A
Thy hydrilla has induced a drought that drained the waterways.
B
The weed clogs propellers that boats use for propulsion.
C
The sticky leaves of the weed hold boats in place.
D
All of the above
11

Which of the following statements about large scale mineral extraction is true?

A
The economic benefits of large scale mineral extraction outweigh the environmental costs.
B
Large scale mineral extraction is more destructive than in the past.
C
Large scale extraction is vital to the economy of mining towns.
D
Mineral extraction cannot be done in ways that do not completely destroy the environment.
12

Which of the following is not true concerning the usage of public land?

A
Public land is managed by federal and state agencies.
B
Unprotected lands exist inside federal parks.
C
Public land can be protected or unprotected.
D
Wilderness areas and state parks are protected.
15

Which of the following is not a characteristic of the source of rivers and streams?

A
high oxygen levels
B
freshwater fish
C
cooler temperatures
D
murky waters
17

Which of the following is not a reason that cane toads became an invasive species in Australia?

A
They are poisonous to most animals.
B
They are voracious predators.
C
They have almost no natural predators.
D
They are not well adapted to the Australian climate.
20

How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?

A
It is used directly to heat homes and offices.
B
It generates steam, which turns a turbine, powering a generator.
C
It generates steam, which is then condensed back to water. This process produces energy.
D
All of the above

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