- How does the Battle of the Kalka River illustrate Mongol battle tactics?

A combination of training, tactics, discipline, intelligence and constantly adapting new tactics gave the Mongol army its savage edge against the slower, heavier armies of the times. ... The light compound bow used by the Mongols had great range and power, the arrows could penetrate plate armor at a close distance.

Explanation:

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.