Maria's mother was deported six months ago, and she is staying with a cousin. She has to share a room with three other children

Answer:

A postal system was developed.

Gunpowder-based weaponry became widespread.

China's grand canal was expanded.

Innovative medicines were created.

Explanation:

The term Pax Mongolica describes how the Mongol Empire's conquests affected the social, cultural, and economic aspects of life for people across the extensive Eurasian regions that were conquered during the 13th and 14th centuries.