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Practice Quizzing
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1

A variety of pesticides are used and they differ from each other in
A)the type of organism killed.
B)the degree of toxicity.
C)the degree of persistence in the environment.
D)all of the above.
2

_________ kill the broadest range of organisms.
A)Fungicides
B)Insecticides
C)Biocides
D)Herbicides
3

Chemicals were first used to kill or ward off pests
A)thousands of years ago.
B)since the beginning of modern chemistry several hundred years ago.
C)about 70 years ago.
D)during World War II.
4

__________ is an example of an inorganic pesticide, a category containing neurotoxins, very dangerous to humans.
A)DDT
B)Mercury
C)Rotenone
D)Carbon tetrachloride
5

Diseases which can be significantly reduced in frequency with pesticides include
A)malaria.
B)river blindness.
C)yellow fever.
D)all of the above.
6

Among the negative effects of pesticides are
A)the killing of important nontarget species such as honeybees.
B)frequent creation of pesticide-resistant pest populations.
C)emergence of new pests when pesticides kill off their natural predators.
D)all of the above.
7

The percentage of U.S. crops lost to pests since pesticide use became common is ____________ than before pesticides.
A)much lower
B)somewhat lower
C)unchanged
D)greater
8

Atrazine, a pesticide used in corn production,
A)is obtained from natural sources.
B)is the first of a newly developed pesticide that causes no environmental harm.
C)appears responsible for deformities in frogs.
D)has been banned.
9

Chlorinated hydrocarbons are characterized by all of the following EXCEPT which one? They
A)disrupt nervous system function.
B)are fast acting.
C)accumulate in fat tissue.
D)degrade quickly in the environment.
10

Chlorinated hydrocarbons are particularly damaging to organisms and ecosystems because
A)their chemical stability allows them to persist in the environment for long periods of time.
B)their high solubility enables them to be broadly spread in the environment.
C)their high toxicity makes them particularly dangerous to a wide range of nontarget species.
D)all of the above.
11

Pesticide resistance
A)has emerged in a few species but more cases are expected.
B)used to be a problem but modern pesticides are typically not susceptible to this problem.
C)has arisen in hundreds of species.
D)has arisen only among insects.
12

Alternatives to using pesticides include
A)creating diverse habitat adjacent to farm fields.
B)growing crops in areas where specific pests are not naturally present.
C)changing cultivation timing.
D)all of the above.
13

Integrated pest management utilizes
A)zero pesticide applications.
B)a more expensive but equally effective alternative to pesticides.
C)an ecologically-based approach to pest management.
D)all of the above methods.
14

It appears that
A)Children are more vulnerable to pesticide exposure than other age groups.
B)the sudden increase in hyperactivity in children may be linked to environmental toxins.
C)children in homes fumigated with pesticides have substantially greater risk of leukemia than children from non-fumigated homes.
D)all of the above are true.
15

Over ____________ pest species have so far evolved resistance to pesticides.
A)1500
B)300
C)100
D)50
16

Suspected pesticide impacts on human health include
A)immune system malfunctions.
B)birth defects.
C)cancer.
D)all of the above.
17

Herbicides are pesticides that kill plants.
A)TRUE
B)FALSE
18

Use of chemicals to control pests began in the last century.
A)TRUE
B)FALSE
19

A substantial portion of pesticides used do not reach their intended target pests.
A)TRUE
B)FALSE
20

Pesticides are so ubiquitous in our environment that only people living in very remotelocations have escaped contamination.
A)TRUE
B)FALSE
21

Problems with memory and reading comprehension are documented for children whose mothers ate pesticide-contaminated fish while pregnant.
A)TRUE
B)FALSE
22

Serious neurological damage has been documented among children living in areas of high pesticide use.
A)TRUE
B)FALSE
23

Crop rotation can be an effective alternative to pesticides to control pests.
A)TRUE
B)FALSE
24

Studies have shown that farms cannot succeed economically without heavy pesticide application.
A)TRUE
B)FALSE
25

Relying on natural predators to control pests is but one of many nonpesticide options farmers can use in an approach known as biological control.
A)TRUE
B)FALSE





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