AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Climate and Change in Ecosystems — Cumulative exam Answers

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What aspect of chaparral shrubs is both a part of their natural defenses and the reason many are popular in cooking?

A
aromatic oils
B
small evergreen leaves
C
ability to thrive in nutrient-poor soil
D
seed germination after fires
47

Which of the following two cycles are the most closely related in their role in sustaining life?

A
carbon and nitrogen
B
water and nitrogen
C
carbon and oxygen
D
nitrogen and phosphorus
48

Which of the following factors renders a species more susceptible to disease and infertility?

A
large genetic diversity
B
inbreeding
C
crossbreeding
D
recessive traits
50

Global climate change is a concern to scientists because it_______.

A
is a natural process unaffected by humans
B
has never changed before
C
can have drastic effects to life on Earth
D
can happen overnight
51

The experimentation step of scientific inquiry involves _______.

A
analyzing data
B
drawing a conclusion
C
choosing variables and controls
D
formulating a question
52

Which of the following statements about pesticides is true?

A
Pesticides provide plants with essential nutrients.
B
Pesticides prevent the destruction of crops.
C
Pesticides are never harmful to plants.
D
Pesticides are never harmful to animals.
53

Scientific models can be used for a variety of different purposes. Which of the following statements about scientific models is not true?

A
Scientific models can save money and lives.
B
Scientific models allow scientists to test their predictions.
C
Scientific models allow scientists to study systems that no longer exist.
D
Scientific models are used rarely.
54

Which of the following would not be considered a point source pollution contributor?

A
an animal feedlot
B
cattle on rangeland
C
a paper mill
D
a slaughterhouse
56

Ozone is formed when _______.

A
two oxygen molecules combine
B
an individual oxygen atom combines with an oxygen molecule
C
ultraviolet radiation breaks apart four oxygen molecules
D
oxygen molecules are broken into separate atoms
58

Which of the following could cause a habitat change?

A
introduction of an invasive species
B
a wildfire
C
a mudslide
D
all of the above

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