Three Weeks Test Review

1/21/2014

ENVIRONMENTAL SYSTEMS

Use the information in the chart below to graph the data on the graph on the right. 

Independent variable on the horizontal (x) axis. Values should range from 1650 to 2020.

Dependent variable on the vertical (y) axis. Values should range from 0 to 20 billion.
Make sure that you have the correct labels for the X and Y axes and a title for your graph.

Work with your group to graph the human

 

 population statistics.

Year (A.D.)	Number of People (in (billions)
1650	0.5
1750	0.7
1850	1.0
1925	2.0
1950	2.5
1960	3.3
1970	3.6
1980	4.4
1990	5.5
2000	6.0
2010	6.4

1. It took 1649 years for the world population to double, going from 0.25 billion people to 0.50 billion people.   How long did it take for the population to double once again?                   yrs.

2. If the carrying capacity of the Earth is 9 million, in what year (according to your graph) will the carrying capacity be reached?                              

3. Explain what the graph will look like when the Earth reaches carrying capacity.







https://drive.google.com/file/d/0BwxQOAkh6K8gUnhRNnB1MFBWZEU/edit?usp=sharing