This review attempts to present most recent findings related to the very controversial question of which processes guide the flow of gas to the galactic centers where the accretion and growth of supermassive black holes occurs. Also. we put this question in the context of influence of the environment (galaxy clusters versus field) onto these processes. [Projekat Ministarstva nauke Rep... https://unitedssports.shop/product-category/soccer-clothing-mens-bottoms-shorts/