How did the mongol empire expand?

Genghis Khan founded this empire in 1206. The Mongol empire expanded rapidly because of military skills,political and economic organization, and discipline.

the empire grew rapidly under his rule and then under his descendants, who sent invasions in every direction.

Explanation:

one central belief of buddhism is often referred to as reincarnation -- the concept that people are reborn after dying. buddhism is a philosophy of life expounded by gautama buddha ("buddha" means "enlightened one"), who lived and taught in northern india in the 6th century b.c.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp