The mongols successfully attacked china’s walled cities with
a. machine guns.
b. cannons.
c. hot oil dropped from balloons.
d. greek fire. reset selection

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

What form of government is powers of states? first letter of the answer is r.

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