How did ancient greeks figure that the earth was spherical rather than flat? choose all that apply 1. viewing lunar eclipses 2. watching ships departing off the horizon 3. calculating gravitation changes at varying elevations 4. noticing changes in the stars at different locations 5. calculating angular changes of shadows

This is what i found “getting into the technicalities, the continental crust has a density of around 3.0 g/cm3 compared to 2.6 g/cm3 of the continental crust. in addition, the continental crust is much thicker than the oceanic crust. the recycling process does not happen to the continental layer.” i hope this you for what your looking for. can you plz mark me brainliest?

Radius energy hope this