Which of the following products was a major export from china during the ming and qing dynasty

Which four of these developments were made under mongol rule during the pax mongolica? the extension of the grand canal in china the spread of christianity the spread of weapons that used gun powder the invention of new medicines the establishment of a postal system the invention of geometric models of lunar motion

Three broad zones with different climates and resources shape russian life. they include:

How many battles were confederate victories? (specifically: major battles)