You are an environmental toxicologist studying permethrin. Your research confirms what the EPA has said about this chemical. What did you find?
a. Permethrin is not harmful to fish or humans.
b. Permethrin is harmful to humans, but not to fish.
c. Permethrin is harmful to fish, but not to humans.
d. Permethrin is harmful to both fish and humans.
Answer: d. Permethrin is harmful to both fish and humans.
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Frost typically forms on the inside of a windowpane (rather than the outside) because:a
the inside of the pane is colder than the outside. b. there is more water vapor touching the inside of the pane. c. there is less water vapor touching the inside of the pane.
Salt marshes exhibit greater species diversity than estuarine marshes
a. True b. False
What type of region is defined by a certain activity (or cluster of activities) taking place there?
A) formal region B) functional region C) areal integration D) areal differentiation E) vernacular region
The Pacific Ring of Fire is
A. a region of nearly continuous eruption of nueé ardentes in the Pacific Ocean basin. B. a nearly circular region of fissure eruptions in the Pacific Ocean basin. C. the region defined by the Hawaiian Islands and the adjacent underwater volcanoes known as seamounts. D. volcanic activity related to subduction zones and spreading zones rimming the Pacific Ocean basin.