What do u have a book or what
Answer:
4600-4500 million years ago, the Earth formed and its crust cooled to become solid. 4500-4400 million years ago, the oldest known thing to have formed on Earth, zircon, formed along with solid crust and oceans. 4200-4100 million years ago, the close of the Hadean Period (there are no surviving rocks).
The Tharsis bulge is probably a plume of molten mantle material that rose to Mars' surface and formed the said bulge, a rounded projection. It is also the biggest bulge with solid surfaces among all the planets known.
It would be C because the ozone layer blocks out harmful radiation from reaching the surface of earth. Hope this helps! - cat
