Costs of pollution control tend to
A) decrease over time because of initial investments in reductions and new technologies.
B) decrease over time because regulations generally become less restrictive.
C) increase over time as levels of acceptable pollution become increasingly restrictive.
D) increase over time as new technologies require renewed investments.
Question 2
The benefit to cost ratio of replacing chlorofluorocarbons in new cars was
A) higher than predicted.
B) lower than predicted.
C) about what was predicted.
D) unpredictable because of fluctuating costs of the replacement gases.
Homeostatic Control Mechanisms
The principle of faunal succession uses animal fossils to tell relative time.
Heat Exchanger Block Diagram Feedforward Control
Insecticide application over time
Indoor air pollution in the developing world arises from fuelwood burning
Marine oil pollution comes from many sources