Explain how observing a ship that is sailing out to sea can provide evidence for a round earth.

Why does a tidal bulge occurs on opposote sides of earth

What is the mercury length of time for one revolution around the sun?

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government