Given below are two statements. In the light of the above statements, choose the most appropriate answer from the options given below.
Statement I:HCFCs were introduced as ozone-safe replacements for CFCs.
Statement II:HCFCs do not contribute to greenhouse warming.
ABoth Statement I and Statement II are correct
BBoth Statement I and Statement II are incorrect
CStatement I is correct but Statement II is incorrect ✓ Correct
DStatement I is incorrect but Statement II is correct
Correct answer: (C) Statement I is correct but Statement II is incorrect
Explanation
Statement 1 is correct, as HCFCs were introduced as less ozone-damaging transitional replacements for CFCs.
They contain hydrogen, so they break down lower in the atmosphere and reach the ozone layer less.
Statement 2 is wrong, because HCFCs are potent greenhouse gases that do add to global warming.
Their high global warming potential makes them targets for phase-out as well.
HCFCs are relatively safer for ozone yet still harmful to the climate.
The Kigali Amendment targets HFCs, which replaced HCFCs, for their warming effect.
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