The population shift from china occurred during the years of the song dynasty.

eastern to western
western to eastern
northern to southern
southern to northern

Why is it useful for historians to base certain studies on the analysis of historical periods

Do all accounts serve the same function? why or why not? yes, all accounts people increase their money no, some accounts are for saving and others are for investing yes, all accounts are designed to ensure a retum on investment no accounts serve the purpose that their owners choose

Which is not a claim kennedy made? a. the fact that communist cuba is so close to american soil is one reason we need to accelerate our space program. b. his decision to shift the study of space to one of the highest american priorities was one of his most important decisions as president. c. within these last months at least 45 satellites have circled the earth. (i think it's this one) d. the mariner spacecraft now on its way to venus is the most intricate instrument in the history of space science. i need this answer really quick, so .