Which is the best definition of agricultural hearths?

a. welcoming entrances to fields where crops were grown

b. areas laden with straw used as kindle

c. consolidated agricultural farms representing several villages

d. places where agriculture developed independently all over the world

hi,

its 2011

hope tthis

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.