There was increase in employment opportunities as people moved from rural to urban areas and also provided them with improved health care for people but this also led to problems like pollution, accidents.
<u>Explanation:</u>
Urbanization means when people from the rural areas move to the urban areas. With the urbanization, there are better employment opportunities to the people. In the urban areas, there are better health care facilities for the people. But this led to a lot of hazard and congestion in the urban areas. There was pollution in water and air because of the human activities.
The answer that best applies to both the Tang and Song dynasties would be C. A Reliable food production and distribution system. This gave both dynasties the ability to thrive.
The Spanish monarchs that pushed the Moors out of Spain by C. Ferdinand and Isabella. They were known as the "Catholic monarchs" and their marriage formed the Kingdom of Spain.