AnswersDRHS GA-GSE Environmental ScienceCumulative Exam

Cumulative Exam — Cumulative exam Answers

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1
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Which of the following are important products of rainforests?

A
timber
B
pharmaceuticals
C
oxygen
D
all of the above
2
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Reclamation restores an environment affected by mining to a state where it can sustain its ecosystem.

A
T
B
F
3

Which of the following about carbon sinks is not true?

A
They emit more carbon than they take in.
B
They take in more carbon they emit.
C
They store carbon from the atmosphere.
D
They include oceans and forests.
4

The principle difference between point source and nonpoint source water pollution is _______.

A
whether the pollution is organic or inorganic
B
the number of sources of pollution
C
the amount of pollution
D
whether it is from commercial or agricultural sources
5

Which of the following is a difficulty associated with environmental protection?

A
cost
B
unpredictability
C
sustainability
D
all of the above
6

Why is preventing pollution at its source the first strategy in minimizing environmental risk?

A
It is easier and more effective to prevent pollution than to clean up and dispose of waste.
B
Remediation of contamination is easier than pollution prevention.
C
Habitat restoration cannot be undertaken with modern technologies.
D
Safe waste disposal is the easiest was to minimize environmental risk.
7

Which of the following is not a negative consequence of upward urban growth?

A
pollution
B
creation of a “heat island”
C
increased use of surrounding land
D
waste management issues
8

How can the use of biotechnology lead to an increase in soil conservation practices?

A
Biotechnology use can lead to a decrease in pesticide and herbicide use, maintaining soil quality.
B
Biotechnology use can lead to soil compaction, preventing erosion.
C
Biotechnology use can increase the amount of management required for agriculture, increasing the likelihood of the practice of soil conservation.
D
All of the above
9

How does groundwater become polluted?

A
Pollutants mixed with water pass through permeable layers above the aquifer.
B
Factories dump their waste directly into aquifers.
C
Refuse infiltrates the water table when garbage is dumped.
D
All of the above
10

Forest management practices can reduce the negative impact of wood harvesting.

A
T
B
F
11

Desalination has no known negative impacts on the environment.

A
T
B
F
12

How does the use of hydroelectric energy compare to the use of coal?

A
Hydroelectric energy is more commonly used than coal.
B
Hydroelectric energy is associated with less waste production than coal.
C
Hydroelectric energy has a larger environmental impact than coal use.
D
Hydroelectric energy requires more land space than coal use.
13

Soil is a mixture of _______.

A
solids
B
solids, liquids, and gases
C
solids and liquids
D
solids and gases
14

The principle difference between point source and nonpoint source water pollution is _______.

A
whether the pollution is organic or inorganic
B
the number of sources of pollution
C
the amount of pollution
D
whether it is from commercial or agricultural sources
15

How can resource conservation benefit the environment?

A
Resource conservation can help preserve natural habitats.
B
Resource conservation can reduce water pollution.
C
Resource conservation can reduce air pollution.
D
All of the above
16

A Labrador retriever breeder needs to determine if three male pups who were born to Sadie, his black Labrador retriever, are the offspring of Sam, a yellow Labrador retriever from another breeder. Which process could the breeder use to determine if Sam is the father of the pups?

A
PCR analysis
B
STR analysis
C
mtDNA analysis
D
Y-chromosome analysis
17

Seafood Watch has made several unsustainable fishing practices illegal.

A
T
B
F
18

The pedigree chart below shows the inheritance of a genetic trait in a breeding line of dogs.How many offspring did individuals 1 and 2 produce?

Question illustration
A
3
B
5
C
8
D
14
19

The table shows four species that have had to make changes due to an environmental change.

Question illustration
A
The polar bear faced a long-term change.
B
The tree frog faced a short term change.
C
The dodo bird and tree frog faced long-term changes.
D
The armadillo and dodo bird faced short-term changes.
20

Which of the following scenarios is representative of how agricultural practices can affect the environment?

A
increased oxygen levels in a pond due to fertilizer runoff
B
sediment accumulation in a body of water near a farm
C
soil compaction caused by tillage
D
increased plant growth caused by the application of herbicides

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