Environmental Science Chapters 1 And 2 4/4
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Environmental Science test
- 1.What essential characteristic does a good experiment have?
- A.
A control group is given the experimental treatment
- B.
A single variable is tested
- C.
A control is used
- D.
Both (b) and (c)
- 2.Why are mathematical models important?
- A.
They are especially useful in situations with many variables
- B.
They can be used to create useful digital images
- C.
They can represent how a system or process works.
- D.
All of the above
- 3.The average mass of a wolf in a pack of wolves is an example of
- A.
Mean
- B.
Distribution
- C.
Sample size
- D.
Statistical population
- 4.A model of a dinosaur is an example of a ___________________ model.
- A.
Graphical
- B.
Mathematical
- C.
Physical
- 5.The chance that an earthquake will occur in your town during the next year is an example of
- A.
Correlation
- B.
Skepticism
- C.
Risk
- 6.Before you can make a decision using a decision-making model, what step must you take?
- A.
Explore the consequences of each option
- B.
Consider which values apply to the issue
- C.
Gather information
- D.
All of the above
- 7.If you consider what will protect our natural resources when making an environmental decision, you are examining a(n) ____________________ value.
- A.
Ethical/moral
- B.
Aesthetic
- C.
Environmental
- 8.Your country is considering buying land to form a nature preserve. On this land, an endangered species of mammal is known to breed. Which of the following is a possible positive long-term consequence of this decision?
- A.
The population of the endangered species increases.
- B.
Habitat destruction is immediately slowed.
- C.
Environmental controls are made less strict outside the preserve area.
- 9.In a scientific investigation, it is important that the number of objects or events being sampled be
- A.
Large enough to give an accurate estimate for the whole population
- B.
Equal to the mean number of objects or events not sampled
- C.
Equal to the total statistical population
- 10.A good hypothesis is more than a guess because it
- A.
Is based on intuition rather than observation
- B.
States what is likely to happen
- C.
Makes logical sense
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