What has been attributed to the deadly viral epidemic among dolphins in the western Mediterranean?

a. DDT
b. Refined oil spills
c. PCBs
d. CFCs


ANS: C
Polychlorinated biphenyls are another type of chlorinated hydrocarbon. The ingestion of the chemical
by these dolphins is thought to have weakened their immune system which allowed for a virus to
infiltrate them. Information can be found in the section Marine Pollutants May Be Natural or Human
Generated.

Environmental & Atmospheric Sciences

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a. True b. False Indicate whether the statement is true or false

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