AP Environmental Science : Health Impacts

Study concepts, example questions & explanations for AP Environmental Science

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Example Questions

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Example Question #41 : Pollution

Which author first brought the issue of bioaccumulation into the public's eye? 

Possible Answers:

William Jennings

Rachel Carson

Al Gore

Henry David Thoreau 

Correct answer:

Rachel Carson

Explanation:

Rachel Carson's novel Silent Spring brought widespread attention to the damage of bioaccumulation in ecosystems. Her outcry against the dangerous chemical DDT (dichlorophenyltrichloroethane) was the first to display the issues associated with large-scale pesticide use. Al Gore's work concerned global warming and the other answer choices are more associated with historical events rather than environmental ones. 

Example Question #11 : Health Impacts

What is the difference between chronic and acute exposure? 

Possible Answers:

Acute exposure is more hazardous

Acute exposure is more sustained

Chronic exposure is more toxic 

Concentration and delivery time

Correct answer:

Concentration and delivery time

Explanation:

Acute exposure is an exposure to a substance over a short period of time in a relatively high concentration. Conversely, chronic exposure occurs over long periods of time at relatively lower concentrations. Toxicity and hazard depend of the circumstance of the substance, not the type of exposure. Acute exposure may or may not be more hazardous or toxic than chronic exposure to the same substance. 

Example Question #12 : Health Impacts

In the US, we regulate major pollutants that cause detrimental effects to humans and the environment. In 1970, an act was signed into law that gave the US Environmental Protection Agency (EPA) permission to regulate pollutants and it sparked the environmental movement. What is this important act called?

Possible Answers:

Clean Ecosystems Act

Clean Water Act

Clean Air Act

Clean Climate Act

Correct answer:

Clean Air Act

Explanation:

The correct response is Clean Air Act. The signing of this act set a precedent that allowed for the signing of additional environmental acts. This act banned toxic chlorofluorocarbons that had caused the whole in the ozone layer. The Clean Air Act gave the EPA permission to regulate, establish laws, and fine individuals and businesses for violating the act.

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