<span><span> 1.Hadean eonsometimes called Age of Mammals </span><span>2.Archean eontoxic atmosphere; first bacteria </span><span>3.Proterozoic eonbuildup of oxygen first eukaryotes </span><span>4.Phanerozoic eoncurrent eon </span><span>5.Paleozoic eratime of the dinosaurs </span><span>6.Mesozoic eralargest mass extinction in Earth's history </span><span>7.Cenozoic era<span>formation of the solar system</span></span></span>
Idk how to help you mate :/
Answer C.
They allowed European militaries to make deadlier weapons than ever before
I believe it was the Rhine or something close to that, where they had mined iron. I could be wrong though, good luck.
Explanation:
if they talk about that subject alot