The fertilizers used by farmers can have negative effects on aquatic ecosystems because there is every possibility that the runoffs from the fields can create an algal bloom in the nearby water body. This algal bloom can have a very negative effect on the living organisms of the aquatic body. I hope it helps.
provide the barrier that marks the boundaries of a cell.
A because they can eat out of the trash where the others require thenforest to live. Hope this helped.