AnswersSC332 Environmental Science BMinerals and Mining

The Water We Use Answers

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How might environmental manipulation of a crop have unexpected consequences?

A
The new crop may require more water than the original.
B
The crop may harm the environment.
C
The yield may be reduced.
D
All of the above
2
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3

The principal characteristic that differentiates temperate and tropical rainforests is __________.

A
latitude
B
oxygen turn over
C
the continent they are on
D
longitude
4

Which of the following could be found on either public or private land?

A
state park
B
single-family residence
C
mine
D
factory
5

Pesticides are best described as _______.

A
polluting chemicals toxic to all living things
B
chemicals that destroy 33% of the world’s potential food supply
C
toxic chemicals used to control weed populations
D
toxic chemicals used to control pest populations
6

How is over-irrigation damaging to soil?

A
It reduces the amount of organic material in soil.
B
It results in the accumulation of salt near the soil surface.
C
It increases the acidity of soil.
D
It removes water from the water table.
7

Which of the following best describes what led to London’s “killer fog” in 1952?

A
Pollution from the air contaminated the water supply which is what killed people.
B
Millions of coal fires and stagnant air caused toxic fumes to build up in the air.
C
Poor city design led to faulty ventilation in houses.
D
Soot from forest and wildfires in the surrounding areas blew over the city.
8

Permafrost (gelisol) is considered a hearty, robust soil type.

A
T
B
F
9

Cities that have available space in surrounding areas, such as Los Angeles, are likely to experience upward growth rather than urban sprawl.

A
T
B
F
10

Which of the following methods of agriculture is the most reliant upon technology and automation?

A
rangeland grazing
B
American agriculture
C
traditional rice cultivation
D
Dutch agriculture
11

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12

Which of the following is the most direct method for combating rainforest deforestation?

A
ecotourism
B
carbon credits
C
rehabilitation
D
education
13

Which of the following is a way that minerals are used?

A
industry
B
construction
C
technology
D
all of the above
14

Which of the following is not true concerning cover crops?

A
they prevent soil erosion
B
they can fix nitrogen in soil
C
they are sold as cash crops
D
they add organic matter to soil
15

Which of the following is not a reason that humans genetically engineer trees?

A
insect resistance
B
pharmaceutical production
C
faster growth
D
none of the above
16

Trees maintain the balance between gases in the air, removing carbon dioxide from the air and releasing oxygen.

A
T
B
F
17

How does mining affect local populations?

A
Mining is a vital part of the economy of surrounding towns.
B
Mining introduces pollution into local water supplies.
C
Mining disrupts local populations of flora and fauna.
D
All of the above are true.
18

Rainforest deforestation is contributing to _______.

A
a decline in global biodiversity
B
the reduction of greenhouse gases
C
increased soil moisture
D
increased drug discoveries
19

The urban migration trend has stopped worldwide.

A
T
B
F
20

Soil fertility is best described as being dependent upon _______.

A
the balance between organic matter and mineral nutrients
B
soil color and the local climate
C
topography and the local climate
D
soil texture

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