Which action occurs when CFC refrigerant leaks into stratosphere, exposing it to high-energy ultraviolet irradiation?

💡 Explanation

When CFCs reach the stratosphere, UV radiation causes photolysis where CFC molecules decompose; releasing chlorine radicals causing catalytic ozone decomposition faster than it's created. Therefore ozone layer thinning results, rather than altered carbon cycle dynamics because carbonylation involves transition metal catalysts, not stratospheric conditions.

• Which risk increases when concrete pour rate around rebar cages is excessively high in formwork?
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• Which outcome occurs during lathe cutting when exceeding critical rake angle?
• Within a hydraulic actuator driving a robotic arm, which outcome occurs when debris becomes lodged in the proportional valve?
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• Which outcome occurs when HCFC refrigerant leaks from refrigeration system into the environment?