What are the factors that determine the level of harm an introduced chemical has on the environment? Please give me the answer and please make it kinda long but not really long. I put the article on top just incase you need it.

answer; benefit; harmed;

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.  

hey there hope i ,

the answer is heat