The answer is B, fossil fuels take a long time to form and humans use lots of them everyday
They all develop gills, slits and tails
Eukarya is the domain containing all organisms with eukaryotic cells.
IT'S D becuse none of the other awser choses make sense so ya
I would say true. I say this because there have been times where scientists find out that there are better ways of performing experiments, or found that certain materials work better for certain tasks. (Especially true in medicinal fields!)
