Answer: b
Difficulty: Medium
Bloomcode: Analysis
Learning Objective 1: LO 1.2 Describe how population growth and our choice of resources affect the environment. TERMINAL LO
Learning Objective 2 LO 1.2.1 Differentiate between renewable and nonrenewable resources. ENABLING LO
Reference: 1.2 Population, Resources, and the Environment
28. In order to estimate human impact on the environment we can:
a) multiply the number of people times affluence per person times resources needed and wastes produced: I=P x A x T
b) multiply resource depletion times number of years divided by number of people: I = R x Y ÷ P
c) multiply birth rate times consumption patterns divided by available resources: I= B x C ÷ R
d) Divide number of people by resources needed and wastes produced: I = P ÷ T
e) None of these choices; the human impact cannot be measured
Answer: a
Difficulty: Medium
Bloomcode: Application
Learning Objective 1: LO 1.2 Describe how population growth and our choice of resources affect the environment. TERMINAL LO
Learning Objective 2: LO 1.2.4 Describe the three most important factors that determine human impact on the environment. ENABLING LO
Section Reference 1: 1.2 Population, Resources, and the Environment
29. In addressing environmental problems, several stages can be followed. For example, when it was discovered that the rat population on the island of Pumehana was out of control, scientists assessed the problem and formulated a model that suggested if a rat predator is introduced, then the rat population will be significantly decreased. The next step in addressing this environmental problem might be:
a) action. Scientists sprinkle rat poison throughout the island. Several residents die.
b) public education and involvement. Hold town meetings to inform island residents the costs of rat predator introduction, a rat sterilization program, rat bounty program, or no intervention.
c) political action. A rat-infested island does not lure tourists so something MUST be done.
d) a risk analysis. If a mongoose is introduced to control the rat, what are the possible effects of this intervention?
e) evaluation. After the release of the initial mongoose population, it is discovered that the mongoose is NOT a rat predator.
Answer: d
Difficulty: Medium
Bloomcode: Application
Learning Objective 1: LO 1.5 List the five stages in addressing environmental problems. TERMINAL LO
Learning Objective 2: LO 1.5.1 List and briefly describe the five stages in addressing environmental problems. ENABLING LO
Section Reference 1: 1.5 Addressing Environmental Problems
30. The Ehrlich/Holdren model assesses human impact on the environment based on all of the following factors EXCEPT:
a) the number of people.
b) the affluence per person.
c) the amount of resources used per person.
d) urbanization.
e) the environmental effects of the technologies used to obtain and consume the resources.
Answer: d
Difficulty: Easy
Bloomcode: Knowledge
Learning Objective 1: LO 1.2 Describe how population growth and our choice of resources affect the environment. TERMINAL LO
Learning Objective 2: LO 1.2.4 Describe the three most important factors that determine human impact on the environment. ENABLING LO
Section Reference 1: 1.2 Population, Resources, and the Environment
31. What is the correct sequence of steps in the scientific method?
I. State the problem
II. Analyze and interpret the data
III. Develop a hypothesis
IV. Share the results with other scientists
V. Design and perform an experiment to test the hypothesis
a) I- II – III – IV - V
b) III – I – V – II - IV
c) I – III – V – II - IV
d) V – IV- III – II - I
e) V – II – I – III - IV
Answer: c
Difficulty: Easy
Bloomcode: Knowledge
Learning Objective 1: LO 1.4 Describe environmental science and the role of the scientific method. TERMINAL LO
Learning Objective 2: LO 1.4.2 Outline the scientific method. ENABLING LO
Section Reference 1: 1.4 Environmental Science
32. In a positive feedback mechanism:
a) a change in some condition triggers a response that counteracts the changing condition
b) a change in some condition triggers a response that neutralizes the changing condition