Nelson Education

spacer

About UsContact UsOrder Information Site MapRep LocatorCareers

Nelson Biology 12

Student Centre
Errata
Interactive Quizzes
Web Activities

Teacher Centre
About the Resources
Online TRs



Science Home
Nelson Education > School > Secondary Science > Biology 12 > Student Centre > Web Activities > Chapter 15
 

Web Activities

UNIT 5: POPULATION DYNAMICS

Chapter 15: Human Populations

Page Number
Question
p. 704

Section 15.1 questions

9. Conduct research on the Internet to determine several key advances in the science disciplines of biology, chemistry, and physics that were among the most influential in human history. Account for their importance.

 

Physics Timeline
Physics Timeline, a synopsis of the advances in the field, with entries from the years 500 B.C. to 2000.

History of Science and Technology: Timeline
This comprehensive timeline provides points about the history of science from 2725 B.C. (the first doctor) all the way up to 1997 (the Pathfinder on Mars).

Scientific Discoveries that Changed the World
Scientific Discoveries that Changed the World describes a series of Web site links that detail various aspects of the history of scientific breakthrough.

History of Science Links
A Huge Number of History of Science Links on all manner of topics are posted on this site by a professor at the University of Florida.

Top

p. 721

Explore an Issue – Take a Stand: Can Biotechnology Increase Food Supplies?
Research Canada’s role in agricultural biotechnology and agricultural technologies. For example, you might want to look into the work of the Canadian International Development Agency. Your research should include a brief description of how the technology works and should focus on the scientific, societal, environmental, and technological impacts of the various biotechnologies.

Genetic Engineering and Food Aid
This Web site, maintained by Food First, links to a couple of articles regarding the issue of biotechnology and food supply. Genetic Engineering and Food Aid gives some background on who is involved in biotechnology and also has a paper about why biotechnology won’t help increase food supply.

Biotechnology and Food
Biotechnology and Food is a site maintained by the American Council of Science and Health. This site puts a more positive spin on how biotechnology can help increase food supply. It also links to a 44-page PDF document regarding Biotechnology and Food.

Kansas State University: Agricultural Biotechnology
Read about the study of agricultural biotechnology at Kansas State University. This site includes links to biotechnology in the news, biotechnology FAQs, and a glossary of biotechnology terms.

Addressing World Hunger: No Single Solution
Addressing World Hunger: No Single Solution is an article on the BioteCanada site regarding world hunger and the potential uses of biotechnology to help solve this problem.

Top


p. 722

Section 15.3 questions

6. Many alternatives in agricultural practices are leading to improvements in land use. Use the Internet to research one of the following farming practices and report your findings back to the class:

a. low-tillage cultivation
b. drip irrigation
c. crop rotation

Drip Irrigation in Israel
Drip Irrigation in Israel is a description of a recent initiative by the Israeli government to adopt this efficient, but costly, means of crop irrigation. The program has been a success, with increased agricultural productivity and a reduction in water requirements.

Conservation Tillage Types
Descriptions of the basic tillage types, including no-till, are given at Conservation Tillage Types, a site belonging to a group associated with Purdue University that promotes conservation in agriculture.

Sustainable Agriculture
Delivered as part of a course at Oregon State University, Sustainable Agriculture has superb explanations of the advantages of alternative agricultural practices. The ‘what is sustainable agriculture’ section should prove helpful, and there is excellent coverage of conservation tillage. There is a link within the tillage page leading to a discussion of crop rotation. Drip irrigation is covered under ‘Decreasing Water Use’.

Potato Crop Rotation
On this virtual tour of PEI agriculture, Potato Crop Rotation is promoted; the benefits of the practice are well outlined.

Top

p. 731

Section 15.4 questions

10. Air pollution in Ontario kills 1800 people each year. Although a considerable portion of Ontario’s air pollution comes from sources south of the border, claims have been made that Ontario has not taken strong action at home to reduce emissions from major sources.

a. Identify three major sources of air pollution emissions in Ontario.
b. Research the health, economic, and societal effects of air pollution.
c. Describe technological and political actions taken to minimize or eliminate emissions.
d. Explain why you feel confident that sufficient efforts are being made to reduce pollutant in Ontario’s air.

Ontario Clean Air Alliance Factsheets
Ontario Clean Air Alliance Factsheets provides a mass of detailed information and statistics about Ontario’s top sources of air pollution, and what is being done about it. Under the ‘Reports and Studies’ section is listed ‘Questionable Air’, the results of a poll exploring the views of Torontonians toward air pollution. Other documents relevant to the question are also listed here.

What is Smog?
What is Smog? is a public information Web page from Environment Canada. Through the menu at the left side of the page you can access info on government policy, community groups, the health effects of air pollution, and a list of further links.

Improving Ontario’s Air Quality
Improving Ontario's Air Quality is a press release from the Ontario Ministry of Environment and Energy outlining the status of air quality in the province, and the government's actions to protect and improve it.

Electricity Choices
Electricity Choices, produced by the Ontario Clean Air Alliance, explains how citizens can affect air quality by choosing ‘green’ sources of electricity. The effect of coal power on our air is described. Click on "Calculate your air quality impact" to calculate your emissions -and your bill -based on different electricity options.

Ontario Clean Air Alliance
The Ontario Clean Air Alliance is a very active organization! Read about what they’ve been up to, learn about recent news items and government policy relating to air pollution in Ontario. The ‘Media’ section contains an archive of press releases.

OnAir
OnAir is the Government of Ontario’s air quality Web site. It provides basic information on the topic, outlines provincial regulations, and provides public access to annual reports on emission levels by Ontario plants. A link at the bottom of the ‘View Reports’ section leads to up-to-date info on the Air Quality Index.

Top

p. 737

Case Study questions

5. How reasonable is it for humans to continue to dispose of millions of tonnes if garbage every day in landfills and incinerators around the world? Research the advantages and disadvantages of this approach.

Incinerators Make Waste More Toxic and…
Incinerators Make Waste More Toxic and…, says the Zero Waste America organization. This site includes information about the negative impacts of incinerators, as well as numerous links, organized topically.

The Basics of Landfills
The Basics of Landfills, from the Zero Waste America organization, explains what a landfill is, and the environmental problems associated with the practice. The link at the bottom of the page leads to much more info, with quick facts, and various other sites.

Solid Waste
The US Environmental Protection Agency addresses the reality of Solid Waste disposal - the role of landfills and the lack of real alternatives.

Municipal Solid Waste
The US Environmental Protection Agency discusses the disposal options of Municipal Solid Waste, including landfills and incineration. Further links are also provided.

How Landfills Work
How Landfills Work explains how they are made, the problems associated with them, and how these problems are solved. Additional links are also included.

Top


p. 740

Section 15.5 questions

7. In the 1990s, the city of Toronto seriously considered a plan to dispose if 20 million to 30 million tonnes of waste in an abandoned open-pit mine in northeastern Ontario. The plan called for the shipping of the garbage some 500 km by rail to a landfill site in the 200-m deep pit. Conduct Internet and/or library research to learn the details of the proposal and comment on the suitability of such a plan as a waste-management strategy for the city.

The Battle for the Adams Mine
The Battle for Adams Mine contains links to a number of articles about the controversial proposal to use the abandoned Adams Mine as a landfill site for Toronto's garbage.

The Adams Mine Landfill Proposal: A Community Perspective
This is a long, but very informative, analysis of why the Adams Mine should not be used as a landfill site. This article discusses why the mine is unsuitable as a landfill site and also discusses the environmental repercussions of using the mine in this manner.

Adams Mine/Toronto Garbage
Use this site to read articles written about the Adams Mine Landfill Proposal between 1996 and 2003.

Top


p. 744

Section 15.6 questions

3.

a. What is meant by the expression global systems thinking?
b. Conduct library and/or Internet research to identify a local, provincial, or national policy that runs counter to global systems thinking.

Theory of Living Systems
Theory of Living Systems is written by the leading systems theorist Fritjof Capra. It is a Web page within the Center for Ecoliteracy Web site, an organization initiated by Dr. Capra.

Environmental Impact Assessment & Policy Development
Environmental Impact Assessment & Policy Development is the arm of City of Toronto government that handles environmental laws and regulations. Their Web pages include information on their reports and studies. The ‘Environment Links’ option in the left-hand side menu leads to info on current projects and regulations.

Ontario Ministry of Environment and Energy
The Ontario Ministry of Environment and Energy Web site provides a wealth of information on current acts and regulations and their application to issues within the province. A report on ‘best management practices’, in the bottom right hand corner of the page, provides very detailed information on Ontario’s philosophy of environmental management.

Environmental Acts and Regulations
Environmental Acts and Regulations is Environment Canada’s public portal to the laws that govern the federal environmental responsibilities.

Your Environment
Your Environment is a topically arranged list of Canadian links about the major Canadian environmental issues. The site is administered by Environment Canada.

Top

p. 744

Section 15.6 questions

5. Some believe that cities, by definition, cannot be sustainable. Conduct library and/or Internet research to explore both sides of this issue and then write a brief position paper.

Sustaining Cities
Sustaining Cities is a summary of the book of that name. The site gives some interesting statistics about urban dwelling, and outlines some of the problems now facing modern civilization.

United Nations Human Settlements Programme
A large number of links to pages within the United Nations Human Settlements Programme Web site contain information about urban sustainability. ‘Cities Alliance’, ‘Sustainable Cities’, and ‘The Habitat Agenda’ are a few places to look. Click on ‘Site Map’ at the top of the page to access this information.

Unsustainable Development
This Web site from a consultancy company includes several articles that examine the root causes of Unsustainable Development.

Farm the City
Farm the City puts forward the view that urban sustainability is dependent on city dwellers’ production of food - a practice that is a large component of urban living in many countries, but not ours.

Sustainable Cities Research Institute
The Sustainable Cities Research Institute, Northumbria University, UK, promotes urban management. Their site includes sections on ‘Research’, a ‘Newsletter’, and further ‘Links’.

Top


p. 745

Practice - Careers
2. Conduct research to determine what types of technologies are used in each of the above careers and how they contribute to the effectiveness of the job.

Ecologist
From New Zealand hails this career Web site, with an in-depth description of an Ecologist’s job. Note the menu on the left, for further info.

What is an Ecologist?
What is an Ecologist?, answers this Web page, with descriptions of daily life in this job.

Demographer
From New Zealand hails this career Web site, with an in-depth description of a Demographer’s job. Note the menu on the left, for further info.

So you Want to be a Wildlife Biologist?
So you Want to be a Wildlife Biologist? is a great site with lots of links that describe this vocation.

Top


3. Conduct an online search to find out which businesses, government branches, and other organizations employ people in these three careers.

Science Jobs
Science Jobs, from the publishers of New Scientist magazine, is a fully searchable database of current jobs available, organized by subject, geographical area, and type of employer - government, industry, academia.

Careers in and out of Science
Careers in and out of Science provides a massive number of links for students wishing to work in science. Scroll down to find numerous job sites featuring science jobs both in and out of academia.

Chronicle of Higher Education
The Chronicle of Higher Education is an American publication with an online searchable job section. Browse the available positions by subject and type of employer - university, industry, or non-profit organization.

Top

p. 747

Activity 15.4.1: The Impacts of Resource Consumption
4. Use a variety of sources, including the library and the Internet to obtain current data related to your chosen measures. Be sure to take into consideration whether the data are presented in gross values or on a per capita basis.

National Biological Information Infrastructure
Use the National Biological Information Infrastructure to find data on the incidence of pesticide use in America. The site was created in conjunction with the US Geological Survey.

How Canada Compares
How Canada Compares to other countries in terms of key environmental factors is outlined by this report. Air pollution, energy consumption, waste production, pesticide and fertilizer use, and habitat protection are among the many factors addressed.

Statistics Canada
Statistics Canada publishes a variety of tables, including information on life expectancy in the ‘Health’ section, and deforestation and air pollution in the ‘Environment’ section.

United Nations Human Development Report
The United Nations Human Development Report, published each year, includes a multitude of tables comparing countries. A huge range of factors have been addressed, including life expectancy, adult literacy, access to safe drinking water, energy consumption, carbon dioxide emissions, and a lot more.

Top


p. 753

Review

17. Obtain from print of electronic sources a copy of the 2001 Canadian census survey and complete it. Discuss with tow or three other students

a. how the census provides government officials with valuable information on demographic issues;
b. some major questions that were not asked but might have been.

2001 Canadian Census
nformation on the 2001 Canadian Census is provided on this site, including summaries of the information collected and a discussion of why the questions are asked. The link ‘2001 Census Questionnaire’ under ‘Reference Materials’ is a printable PDF file of the original survey.

Top

p. 753

Review

18. From electronic or print sources, locate an article relating to human population growth. Critically analyze the article, especially for validity, possible bias, and underlying assumptions. Based on your analysis, write a critical commentary of, or response to, this article. Answers to the following questions may help guide your critical analysis:

a. Who is the author? From what perspective is he or she writing this article?
b. What is the author’s purpose in writing and publishing the article?
c. Is it from a credible source? How do you know?
d. What are the author’s credentials? Is the author a member of a lobby group or an employee of a government or a company with an economic interest in the article topic?
e. Does the author use scientific evidence to support what he or she is saying, or is the article mostly based on opinion? If it is supported by scientific evidence, is the evidence valid or authoritative? How do you know?

Six Billion and Beyond
Six Billion and Beyond; so goes the growth of the human population. This article, from Population Action International, explores why - and predicts the future.

US Environmental Protection Agency’s Population Non-Policy
US Environmental Protection Agency’s Population Non-Policy is an article from the human population activist group, Negative Population Growth. It puts forward the view that the US government is not adequately addressing the problem of overpopulation.

The Desert Will Win
“Due to the insanity of the terrestrials, who reproduce uncontrollably like rabbits”, the soil of planet will be removed of its nutrients and turn to desert - The Desert Will Win. So says this article, from an overpopulation organization.

India Reaching 1 Billion on August 15: No Celebration Planned
From WorldWatch, comes the well-written 1999 news article India Reaching 1 Billion on August 15: No Celebration Planned, which describes the history and current status of India’s population growth.

Population Policy
The Government of India, faced with the burden of overpopulation, has instilled a Population Policy, with the aim of controlling growth by encouraging small families. This Web site from the public relations office outlines their policy.

 

Top