Classify each amino acid by the chemical properties of its side chain (R group) at pH 7. Select the amino acid that fits best in each category. Each amino acid will be selected only once. A. Which amino acid has a positively charged R group?
B. Which amino acid has a negatively charged R group?
C. Which amino acid has a neutral polar R group?
D. Which amino acid has a nonpolar aliphatic R group?

How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.