22
QuizMultiple Choice

Hypotheses, Laws, and Theories — Unit test

Question 22 • *26-27 CFISD TX-Chemistry A CR

What negative impact did chemistry have on society through the production and use of chlorofluorocarbons (CFCs)?

Answer
A
Hazardous coolants in refrigeration units were replaced.
B
Better refrigeration reduced loss of food through spoilage.
C
Lower levels of ozone allowed more ultraviolet radiation to reach Earth.
D
Fire safety improved through the use of fire extinguishers.

Explanation

CFCs released into the atmosphere can break down ozone in the stratosphere. With less ozone to absorb it, more ultraviolet radiation reaches Earth’s surface, which can harm people and ecosystems. Choice C describes this negative impact; the other choices describe benefits associated with CFC use.

AI-written and checked against the verified answer.

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