Answer:
Genghis forged the empire by uniting the nomadic tribes of the Asian steppe and creating a devastatingly effective army based on fast, light, and highly coordinated cavalry. Expert horsemen and archers, the Mongols proved unstoppable, defeating armies in Iran, Russia, Eastern Europe, China, and many other places.
Explanation:
We have several layers of crust but they separated because of the desity level differences. The lighter material cruet layers rose upwards and the heavier materials caused them to drop further down
The moderation and the gulf of Italy