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Based on the prefix, de-, what does the word “decongestant” mean?

a device that causes congestion
a resource that defines congestion
a way to measure congestion
a substance that reduces congestion

User RayInNoIL
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2 Answers

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D. A substance that reduces congestion
User QuinnF
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Answer: A substance that reduces congestion

Explanation: The prefix de means to do the opposite of something. Think of the word deactivate :)

User Stuart Hallows
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