I. Questions from lectures (82 percent). Answer each question as completely as possible. Percent value is noted in parentheses.

(6) List three "good" environmental aspects of urban areas and three "bad" aspects.

(6) Give and explain an example of where the same person might minimize a risky voluntary activity but be overly-concerned with an unfamiliar technical-sounding situation.

(4) Explain the meaning of LD₅₀.

(4) Give one example each of point source and non-point source water pollution.

(2) What is WHO?

(8) Explain how DO and BOD measure water quality in a stream.

(2) What is the leading cause of death in LDCs?

(5) Explain the process of eutrophication.

(6) What is a thermal inversion, and why does it make air pollution problems temporarily worse in an area?

(5) How does photochemical smog form?

(8) What causes acid rain, and why is it best regulated at a federal rather than state level?

(4) What is "urban sprawl", and why is it bad for the environment?

(7) List the "criteria" pollutants established by the Clean Air Act?

(3) List three potential greenhouse gases that are increased by human activity.

(6) Where is Mt. Erebus, and why don't most environmentalists like to mention it?

(3) What chemical element (not compound!) is known to cause ozone depletion, and what do most scientists believe is the source of this element?

(3) If global warming were to occur, what hemisphere (north or south) would warm faster, and why?

II. Questions from presentations (18 percent).

Amanda Howard (Effects of UVB Radiation)

Shelly Roberts (Noise Pollution)

Lori Holeman (Plastics)

Melissa Hartman (Formaldehyde)

LaDona Henderson (Ethylene Glycol)

Kelly Danti (Industrial Waste)