A disadvantage of hazardous chemicals is not that they: A. Have been linked with impairment of fertility B. Have presented dangers to first responders C. Have been implicated in the etiology of birth defects D. Are essential to the functioning of modern society E. Have been implicated in the etiology of cancer

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.