questions with answers
1. Part A. About how many times larger was the global
ecological footprint in 2007 than it was in 1962?
2
1. Part B. Which two statements are supported by the
data in the graph?
In 1970, we began to overshoot Earth's capacity to
support us.
The global ecological footprint has generally increased
over time, with brief periods of decrease.
2. Which of the following terms best describes the
practice of environmental science?
Integrative and interdisciplinary
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,3. Which of the following is the study of how the natural
world works, how our environment affects us, and how we
affect our environment?
Environmental Science
4. A(n) __________ expresses environmental impact in
terms of the cumulative area of land and water required
to provide the resources a person consumes.
ecological footprint
5. Which of the following could be depleted if overused?
fresh water
6. Part A. According to the graph with the linear scale, the
population reached 8 billion individuals after
approximately _____ generations.
900
6. Part B: According to the graph with the logarithmic
scale, after 200 generations the population had
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, 1000 individuals
6. Part C. Comparing the graphs with the linear and
logarithmic scales at 400 generations shows that:
Although you cannot read the exact value from the linear-
scale graph, the population size is the same, just shown
with different scales.
6. Part D: Suppose that the initial population was 10, but
the growth rate was 5% (instead of 2.3%). How would the
linear-scale graph differ?
The linear graph would show rapid population growth
beginning at an earlier generation.
6. Part E: Suppose that the initial population was 10, but
the growth rate was 5% (instead of 2.3%). How would the
logarithmic-scale graph differ?
The logarithmic graph line would have a greater slope
than the graph shown.
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