Asap (15 points)

in which of the following ways are the conditions around deep sea vents similar to the conditions that existed on early earth?

a) only ultraviolet light can reach the depth of the deep sea vents making it much like the light on early earth.
b) the volcanic gases released from the deep sea vents are similar to those released into the early atmosphere.
c) water around the deep sea vents contains low concentrations of iron sulfide just as the early oceans did.
d) the water at the depth of the deep sea vents were as cold as the early oceans.