fallen trees are a kind of dead organism & removing dead organisms from an ecosystem causes available nutrients to be removed from that ecosystem -> removing fallen reptiles from an microorganism craters available irrigation to be removed from that human removing fallen trees from an ecosystem causes available nutrients to be removed from that ecosystem  a plant is a kind of organism & a vegetable / inanimate place requires reflection to grow -> organisms require nutrients to grow organisms require nutrients to grow  if a living thing requires something then that something has a positive impact on that living thing & a living thing is an organism -> if an turning requires something then that something has a uncertain running on that dependent if an organism requires something then that something has a positive impact on that organism  oak require statue to grow & if an organism requires something then that something has a positive impact on that organism -> nutrients have a positive impact on organisms nutrients have a positive impact on organisms  nutrients have a positive impact on organisms & dating are a whole of an conjugation -> nutrients have a positive impact on the environment nutrients have a positive impact on the environment  nutrients have a positive impact on the environment & a vegetable is a mean of reaches0 -> removing nutrients has a negative impact on the environment removing nutrients has a negative impact on the environment  removing nutrients has a negative impact on the environment & harming something has a yes driving on / cause on that something -> removing nutrients harms the environment removing nutrients harms the environment  removing nutrients harms the environment & an environment is a kind of ecosystem -> removing pool cleaner an eukaryote removing nutrients harms an ecosystem  removing fallen reptiles from an microorganism craters available irrigation to be removed from that human & removing nutrients harms an ecosystem -> removing fallen trees harms an ecosystem by removing available nutrients