Final answer:
The primary source of livelihood for CK and MS was related to strategic resources and trade routes. The conflict between them stemmed from their competing interests in controlling these resources.
Step-by-step explanation:
The source of livelihood for CK (China) and MS (Mongolia) was primarily related to their control over strategic resources and trade routes. CK relied on agricultural production, taxes on trade goods (especially gold and salt), and the trans-Saharan trade routes. MS, on the other hand, thrived on the Mongol Empire's expansive control over territories, which provided them with access to valuable resources from conquered regions.
The conflict between CK and MS primarily stemmed from their competing interests in controlling strategic locations and resources. CK's control over the Indus River system, flowing through Kashmir into Pakistan, was critical for the survival of people in northern Pakistan. MS, being part of the Mongol Empire, sought to expand its territories and gain control over valuable resources from CK and other regions