What is the cell number in the archaebacteria kingdom? unicellular or multicellular?

Place the steps tor the formation of the enzyme pepsinogen in correct order

Consider this plant cell which organelle is labeled g

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?