Earth is a massive (a bit under 6x10^24 kg) ball of iron and some other elements in comparatively minute quantities. The thin layer of the "biosphere" is utterl

Earth is a massive (a bit under 6x10^24 kg) ball of iron and some other elements in comparatively minute quantities. The thin layer of the "biosphere" is utterly insignificant to Earth. It's massively significant to humans.