CH-361
Ozone layer
Chemistry · Secondary 3 · Medium · Ozone layer
A student says: "CFCs are greenhouse gases that mainly cause global warming by trapping heat in the troposphere." Which correction best describes the MAIN environmental effect of CFCs learned in school chemistry?
- CFCs mainly destroy ozone in the stratosphere, increasing UV reaching Earth
- CFCs mainly react with carbon dioxide to reduce the greenhouse effect
- CFCs mainly cause acid rain when they dissolve in cloud water
- CFCs are harmless because they are unreactive at all altitudes
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