Green Chemistry

Step 1: Understand CFCs and their use in refrigeration.
Chlorofluorocarbons (CFCs) are synthetic compounds that were historically used as refrigerants in air conditioning and refrigeration systems.
Freon is the most commonly known CFC used for this purpose.
Step 2: Identify the correct CFC.
Freon (CFC-12) is the CFC that was widely used in refrigerators and air conditioners.

Step 1: Understand the effects of global warming.
Global warming leads to the melting of glaciers, rising sea levels, and more extreme weather patterns.
However, global warming does not directly affect UVB radiation levels; instead, it is primarily the depletion of the ozone layer that increases UVB radiation.
Step 2: Identify the incorrect effect.
An increase in UVB radiation is caused by ozone depletion, not global warming.