How is epithelium classified, and what are its functions? Why are mesothelium and endothelium considered separately from other types of epithelium?

(intro to ag on odyssey ware) which of the following describes the third step to recycling ammonia for use as a fertilizer? gather wastewater from livestock apply recycled ammonia to plants extract the ammonia from wastewater mix ammonia to create ammonium nitrate (legit answer only hurry on test now)