AP Environmental Science Quiz
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AQUATIC AND TERRESTRIAL POLLUTION
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A dose-response curve shows 0% mortality at 0-10 mg/kg, 20% at 15 mg/kg, 50% at 20 mg/kg, and 90% at 30 mg/kg. What is the LD50?
A
10 mg/kg
B
15 mg/kg
C
20 mg/kg
D
30 mg/kg
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