Which Macromolecule forms peptide bonds?

Which entry is in the wrong position in the table?

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

What element is able to combine with itself and hydrogen to form large molecules ?