Principles of Environmental Science

William P. Cunningham, University of Minnesota
Mary Ann Cunningham, Vassar College

Environmental Health and Toxicology

True False Quiz


1	In the book, Silent Spring, Rachel Carson predicts that many harmful bacteria will become resistant to antibiotics.
		A)	True
		B)	False


2	Of all the communicable diseases, Cholera causes the most deaths each year worldwide.
		A)	True
		B)	False


3	Teratogens, such as alcohol, can cause craniofacial abnormalities and mental defects in infants.
		A)	True
		B)	False


4	Neurotoxins, such as lead and mercury, are the leading cause of cancer.
		A)	True
		B)	False


5	Chorofluorocarbons and DDT are considered persistent organic pollutants because they retain their toxicity for a long time.
		A)	True
		B)	False


6	The LD 50 of a toxin is the dose that is lethal to individuals over 50 years old.
		A)	True
		B)	False


7	According to the Environmental Protection Agency's assessment of relative risks to human welfare, oil spills and radionuclides are relatively high-risk problems.
		A)	True
		B)	False

2002 McGraw-Hill Higher Education
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