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SCI 256 Entire Course
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SCI 256 Week 1 Individual Assignment Environmental Science
Worksheet
SCI 256 Week 1 DQ 1
SCI 256 Week 1 DQ 2
SCI 256 Week 1 DQ 3
SCI 256 Week 1 DQ 4
SCI 256 Week 2 Learning Team Assignment Natural Resources and
Energy Team Paper – Plan
SCI 256 Week 2 Individual Assignment Ecosystem Structure,
Function, and Change
SCI 256 Week 2 DQ 1
SCI 256 Week 2 DQ 2
SCI 256 Week 2 DQ 3
SCI 256 Week 3 Learning Team Assignment Natural Resources and
Energy Paper
SCI 256 Week 3 DQ 1
SCI 256 Week 3 DQ 2

SCI 256 Week 3 DQ 3
SCI 256 Week 3 DQ 4
SCI 256 Week 4 Individual Assignment Environmental Pollution
Outline
SCI 256 Week 4 Individual Assignment Environmental Pollution
SCI 256 Week 4 DQ 1
SCI 256 Week 4 DQ 2
SCI 256 Week 4 DQ 3
SCI 256 Week 4 DQ 4
SCI 256 Week 5 Learning Team Assignment Economic Analysis
Presentation
SCI 256 Week 5 DQ 1
SCI 256 Week 5 DQ 2
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SCI 256 Final Èxam Guide
Set contains 40 Question

1. According to the Environmental Science text, the
environmental statement of the 1990s was “saving our planet”. Is
earth's very survival really in danger?
2. The total amount of food produced each year worldwide is
sufficient to feed all the world's people today. Why do famines
nevertheless occur?
3. An observation that is agreed upon by the majority of
scientists is called a
4. Which of the following is the correct sequence of steps, from
beginning to end, in the Scientific Method:
5. A chemical spill has occurred on the shore of a lake in an area
where the underlying aquifer is widely used as a drinking water
supply. The pollutants threaten to flow into both the surface water
and the groundwater. The residence time of water in the lake is short,
and the residence time in the groundwater is long. Which of the
following statements is correct?
6. The region of the Earth where life exists is known as:

7. Epidemic diseases include all of the following except:
8. Decreased death rate and the accelerated rate of human
population growth are related to: I. improved sanitation and
health
II. increased food supply
III. control of disease-spreading organisms
9. Which of the following cycles involves the movement of water
from the surface of the Earth through the atmosphere back to the
surface of the Earth?
10. The substance with the greatest significance for the global
carbonate-silicate cycle is:

11. According to the Environmental Science text, an ecosystem:
12. Which of the following statements is true about omnivores?
13. In the open ocean, the first trophic level is composed primarily
of:
14. Firewood is the primary source of fuel for cooking and
heating in many cultures. Approximately what percentage of the
world's total energy use involves firewood?
15. Gradual, sequential changes in the composition of an
ecosystem, particularly following an initial disturbance is called:

16. Since the extensive fires in Yellowstone National Park in 1988,
the park often has been cited as an example of the connection between
forest fire and natural succession. An important part of
understanding the danger of wildfire in Yellowstone is understanding
its history. From the time of the founding of the park in 1872 until
1963, what was the policy regarding wildfires?
17. What is the most important cause of starvation worldwide?
18. Aquaculture refers to:
19. Deserts occur naturally where:
20. What is the main reason that DDT is still being used in large
areas of the world?

21. Which of the terms below refers to the phenomenon in which
many species escape from a cut area and seek refuge in the border of
the forest:
22. The most fundamental difference between a park and a true
wilderness area is:
23. As people clear land and modify the environment, species
which _____ are especially vulnerable to extinction.
24. Carrying capacity is the:
25. Which of the following are the three main energy sources used
in the U.S?
26. The majority of Earth's energy input comes from:

27. _________ is an example of a fossil fuel; _________ is an
example of an alternative energy source; and _________ is an
example of a renewable energy source:
28. The Alaska National Wildlife Refuge (ANWR) has made
headlines because of:
29. Which of the following is the strongest argument in favor of
pollution allowance trading:
30. Oil is:
31. Which of the following terms refers to energy produced from
any source other than fossil fuels:

32. What is geothermal energy?
33. What one factor, more than others, determines the suitability
of tidal power for a coastal site?
34. The worst accident in the history of commercial nuclear power
happened in 1986 at Chernobyl, where a uranium fuel meltdown
occurred. According to the Environmental Science text, in the next 20
to 30 years, there will be an increase in cancer:
35. The Energy Policy Act of 2005 considered the role of nuclear
power in the U.S. energy mix. Its recommendation was to:
36. What is an aquifer?

37. “Instream use” refers to:
38. Desalination is a promising source of water for some
locations because:
39. The amount of phosphorus and nitrogen in groundwater
probably would be greatest:
40. According to the Environmental Science text, what is the most
critical water pollution problem in the world?
41. During the last two million years or so, the climate of the
Earth has:

42. Large volcanic eruptions appear to make the Earth's climate
_________,at least temporarily.
43. Carbon monoxide is particularly dangerous to humans
because:
44. Atmospheric inversion conditions over urban areas pose a
problem primarily because:
45. This is an ailment caused by long-term exposure to air with
high concentrations of soot or carbon-rich dust:
46. The number of deaths caused by lung cancer due to exposure
to radon is comparable to the number of deaths caused by
______________ in the U.S. each year.

47. The field of environmental economics seeks to:
48. Many natural organisms and ecosystems perform service
functions that are beneficial to humans. These include all of the
following except:
49. Before modern sanitation and medicine, a major control on
population density in European cities (and cities elsewhere) was:
50. Love Canal, near Niagara Falls, New York, illustrates which
of the following principles or problems?
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SCI 256 Week 1 DQ 1

Week 1 DQ1
In your opinion,what are the benefits and constraints of using the
scientific method to analyze environmental decisions?
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SCI 256 Week 1 DQ 2
Week 1 DQ2
What are some social, economic, aesthetics, and ethical issues
involved in a current environmental controversy? Explain
**************************************************
SCI 256 Week 1 DQ 3

Week 1 DQ3
What organelle of the cell do you think is most important for life?
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SCI 256 Week 1 DQ 4
Week 1 DQ4
What is zero population growth? Is this a reasonable and attainable
goal for the global human population?
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SCI 256 Week 1 Individual Assignment
Environmental Science Worksheet

Resource: University Material: Environmental Science Worksheet
Complete the Environmental Science Worksheet found in Week One
on the student website.
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SCI 256 Week 2 DQ 1
Week 2 DQ1
Because ecosystems change and may recover naturally from
disturbance over time, what factors affect decisions about whether
human intervention is needed to help ecosystem recovery? Provide
examples.
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SCI 256 Week 2 DQ 2

Resource: University Material:Ecosystem Structure, Function, and
Change
For this assignment, you will choose from the following options:
· Option 1: Ecosystem Components Paper
· Option 2: Ecosystem Components Video and Summary
Read the instructions in the University Material: Ecosystem
Structure, Function, and Change located on the student website and
select one option to complete the assignment.
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SCI 256 Week 2 DQ 3

Week 2 DQ3
Identify a natural ecosystem in which you live or one near to where
you live? How does this ecosystem support you? How can you
minimize your carbon footprint?
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Ecosystem Structure, Function, and Change
Resource: University Material:Ecosystem Structure, Function, and
Change
· Option 1: Ecosystem Components Paper
· Option 2: Ecosystem Components Video and Summary

Read the instructions in the University Material: Ecosystem
Structure, Function, and Change located on the student website and
select one option to complete the assignment.
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SCI 256 Week 2 Learning Team Assignment
Natural Resources and Energy Team Paper –
Plan
Brainstorm topics and who will cover what part of the Natural
Resources and Energy Team Paper due in Week Three.
Create a written plan of no more than 350 words of how you will
complete the Natural Resources and Energy Team Paper due in Week
Three.
Submit your team’s written plan to your instructor for approval.
**************************************************

SCI 256 Week 3 DQ 1
Week 3 DQ1
In your community, what aspects of suburban sprawl and urban blight
are evident? Identify how the effects from these might be alleviated.
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SCI 256 Week 3 DQ 2
Week 3 DQ2
What is one major cause of present-day species extinction? Explain
how this extinction came about and what could have been done to
prevent it.
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SCI 256 Week 3 DQ 3
Week 3 DQ3
Is your community people- or car-oriented? Why or why not? How
does that affect energy use and sustainability of your community?
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SCI 256 Week 3 DQ 4
Week 3 DQ4
What is a superfund site? Do you have any around your area? How
are they remediated? Are they on a list of some sort?
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Natural Resources and Energy Paper
Write a 1,400- to 1,750-word paper on natural resources and energy.
Include the following:
· Choose a specific ecosystem, such as a forest, grassland, or a
marine or freshwater aquatic ecosystem.
· Identify impacts associated with agriculture.
· Identify and discuss the effects that a growing human
population may have on that ecosystem’s resources, including loss or
harm to populationsof wild species.
· Discuss one management practice for sustainability and
conservation of natural resources in that ecosystem.

· Identify the risks and benefits of extracting or using one type of
nonrenewable and one type of renewable energy resource from that
ecosystem, or in areas near that ecosystem.
· Assess management practices for sustainability and
conservation of natural resources and energy.
Include two outside references.
Format your paper consistent with APA
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SCI 256 Week 4 DQ 1
Week 4 DQ1
What are some of the causes of both indoor and outdoor air pollution
where you live, work, or attend school? How does this affect that
environment?
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SCI 256 Week 4 DQ 2
Week 4 DQ2
Why do you feel there is debate about policies to reduce greenhouse
gas emissions? How can science help resolve the debate?
**************************************************
SCI 256 Week 4 DQ 3
Week 4 DQ3
What are some of the causes of both indoor and outdoor air pollution
where you live, work, or attend school? How does this affect that
environment?

**************************************************
SCI 256 Week 4 DQ 4
Week 4 DQ4
Why do you feel there is debate about policies to reduce greenhouse
gas emissions? How can science help resolve the debate?
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Environmental Pollution Outline
Resources: University Material: Environmental Pollution Outline
Complete the Environmental Pollution Outline on the student website.
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Environmental Pollution
Resource: University Material:Environmental Pollution
· Option 1: Analysis of Global Warming Case Study
· Option 2: Environmental Pollution Scenario Review and
Summary
Read the instructions in the University Material: Environmental
Pollution located on the student website and select one option to
complete the assignment.
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SCI 256 Week 5 DQ 1

Week 5 DQ1
Who should manage the natural resources: legislature, public,
scientists, special interest groups, and why?
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SCI 256 Week 5 DQ 2
Week 5 DQ2
How have environmental regulations implemented by local politicians
affected your daily life? Provide an example.
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Economic Analysis Presentation

Perform an economic analysis of an environmental pollution issue in
the world today.
Prepare a 10- to 15-slide Microsoft® PowerPoint® presentation with
detailed speaker’s notes. Include the following:
· Importance of economic analysis
· Description (general overview) of the assigned environmental
issue
· Economic analysis of the environmental issue
o Costs
o Benefits
o Risks
o Limitations
o Problems

· How economic analysis can be used to determine the most
effective and economical regulations or policies (see Ch. 7 of
Environmental Science) to help solve the environmental concern
· Description of the impact of lifestyle choices on sustainability
Include two other resources aside from the textbook.
· For Local Campus students, these are 15- to 20-minute oral
presentations accompanied by Microsoft® PowerPoint®
presentations.
For Online and Directed Study students, these are Microsoft®
PowerPoint® presentations with notes.
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