Which Indian mathematician and astronomer wrote that Earth was a rotating sphere

Aryabhata

thats the  Indian mathematician

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

the correct answer is a: slaves from other colonies ran away to georgia.