Final answer:
The Mongols' conquest of China had both positive and negative effects, depending on the perspective and specific impacts considered.
Step-by-step explanation:
The Mongols' conquest of China had both positive and negative results. On the positive side, the Mongols encouraged commerce and innovation by enabling the flow of goods, services, and new ideas across Eurasia. This exchange of culture and knowledge had a civilizing impact in some regions. However, they also caused direct destruction, such as the destruction of Baghdad and the end of the Song dynasty in China, which led to economic and cultural stagnation. So, the view of the Mongols as a group to be viewed positively or negatively depends on the perspective and the specific impacts being considered.