Environmental Science Final Exam Study Guide

Adaptations demonstrated by plants in tropical rainforests include

• trees with above ground roots called buttresses, which increase stability
• orchids and vines that use tall tree trunks for support
• herbs with large flat leaves located in the understory
• All of the above

Which of the following factors is associated with the highest potential for population growth

• High percentage of people under age 18.
• High percentage of people in their 30s.
• High percentage of people in their 50s.
• High percentage of people in high-income groups.
• High percentage of people in low-income groups.

The density of a population is

• the number of individuals born every year.
• the proportion of males and females.
• the number of individuals living in cities.
• the number of individuals per unit area.

The carrying capacity of an environment for a particular species at a particular time is determined by the

• number of individuals in the species.
• distribution of the population.
• reproductive potential of the species.
• supply of the most limited resources.

What are wind and water erosion NOT likely to affect?

• tides
• soil
• mountains
• Rocks

Educating women worldwide has lowered birthrates partly because

• educated women need to bear many children to ensure that some will survive.
• educated women may learn family-planning techniques.
• educated women contribute less to their family income.
• All of the above.

A government restricts the production of a certain chemical. This is an example of

• economic failure
• economic incentive
• marketing ploy
• regulation

Replacement level fertility (RLF) for a couple is

• 1
• 2
• 2.1
• 3
• varies depending on country

If you wanted to convince your elected leaders that steps should be taken to reduce soil erosion along the bank of the creek that runs through your neighborhood, you would probably be most effective working with your

• local government
• state representative
• United States Senator
• Congressional Representative

In general, sustainability is more of a concern now than it was 100 years ago. Why?

• People live differently and use more resources
• The human population is growing
• People are more educated
• All of the above