7,8: life learnt to reproduce because of radiation. For instance, the understanding of how the planet was formed is similar to that of a welding splatter, the sun in it's infancy had a sun spot, a heat erruption that jetisoned a globual of gases. these moved out from the sun and cooled (The sun continued fusion and fission and slowly decreased in volume.) these gases could bonded as the elements we know, although the crust cooled the molden interior stayed hot (and is still hot and will always be hot). The crust of the planet, it's very landplates cooled into rock form, and the rock themselves carry a magnetic essence that the whole sum of creates the poles and the land plate movements when the axis moves slightly.