Graphs: /6 /2 Human Population Lab Problem Statement: Humans can alter their environment to suit their own needs. They a

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Graphs 6 2 Human Population Lab Problem Statement Humans Can Alter Their Environment To Suit Their Own Needs They A 1 (103.24 KiB) Viewed 15 times

Graphs: /6 /2 Human Population Lab Problem Statement: Humans can alter their environment to suit their own needs. They are dependent, however, on their environment for the same life requirements as other organisms. Is human population growth governed, then, by the same ecosystem factors as other species? Will our total number on this planet be controlled by nature? Procedure: 1. Below are two sets of data for human populations. Plot these on two separate sheets of graph paper. Note: leave enough space for the year 2050. 2 Draw in by hand the line of best fit. World Population (x million) Year Size 1650 550 1700 600 1750 750 1800 850 1850 1300 1900 1600 1920 1800 1930 2015 1940 2250 1950 2500 1960 3000 1970 3550 1974 3900 1976 4000 1986 4800 1991 5400 1994 5600 1999 6000 2001 6100 2002 6350 2005 6500 2010 6900 2015 ? 2025 ? 2050 ? Canada's Population (x million) a) the world? b) Canada? Year Size 1871 3.6 1881 4.2 1891 5.0 5.5 8.5 1931 10.0 11.0 1901 1921 1941 1951 1961 1971 1976 1981 1986 1991 14.0 18.2 21.5 22.6 24.3 25.6 27.3 1994 29.1 1996 29.6 1998 30.2 2000 30.7 2001 31.0 2002 31.6 2005 32.2 2010 34.1 2015 ? 2025 ? 2050 ? Questions??? 1. With a dotted line, extend your line of best fit to the year 2050. What do you predict the population to be for:

/2 /1 /5 /3 /2 /2 /2 /5 2. In 1998 the United Nations estimated that the population of the world would be 8 billion by the year 2025. How does your figure compare to the United Nations projection? 3. a) Approximately when did the rapid growth phase in world population begin? b) Suggest at least five reasons as to why the population began to grow so rapidly? 4. By the year 2100, the world's population may be as high as 18 billion, almost three times greater than it is now! What potential problems could a high population create? List six. 5. a) Define three stages of a natural population growth curve for a species. b) At what stage is: 1) the world curve 2) the Canadian curve 6. Canada's population is growing at a much slower rate than the world's population in general. Suggest four practical explanations for this. 7. State five natural factors which tend to limit human population growth and for each describe how humans have attempted to control or eliminate these factors.