The answer is (d.) iridescent shark catfish.
Cartilaginous fishes are vertebrates that has jaws, paired fins, scales, and a heart like whale shark, great white shark, and manta ray. This class of fishes are divided into two: Elasmobranchii and Holocephali. While iridescent shark catfish is simply a shark catfish but not a shark.
It is the nuclear Power plant because the nuclear plant releases energy from fission from uranium atoms splitting the nucleus. This releases radiation and not too much greenhouse gases unlike its fossil fuel counterparts
Answer:
D
Explanation:
This would assist in proving there were ice ages because it shows that cold adapted animals were living before, in what is now warm environments.