Bonus Question 17)
What two major factors are involved in the conversion of primary pollutants into secondary pollutants?
A)
Sunlight and water
B)
Sulfates and sunlight
Water and volatile organics
D)
Nitrogen oxides and sulfates

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.