Which of the following factors helps explain the rise of urban centers and the increase in trade in Afro-Eurasia during the second half of the thirteenth century?

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Which of the following factors helps explain the rise of urban centers and the increase in trade in Afro-Eurasia during the second half of the thirteenth century?

A

The increase in all forms of coerced labor to build housing

B

The decline of the Mongol khanates across Asia

C

The reopening of Indian Ocean trade networks by Chinese explorers

D

The availability of safe and reliable transport along land-based trade routes

D  The availability of safe and reliable transport along land-based trade routes

Explanation:

During the thirteenth and fourteenth centuries, Afro-Eurasia, which covered what are now Africa, Europe, and Asia, developed a trading system through land and water routes, known as the Silk Road.

Concentrated on urban centers, it connected eight geographical regions: the Persian Gulf, Central Asia's Northern Passage, the China Sea, Southeast Asia, the Arabian Sea, North Africa, the Eastern Mediterranean, and Western Europe.

salt is a type of solid, which means that it will when placed in water.

  a.  

soluble, float

  b.  

soluble, dissolve

  c.  

insoluble, settle

  d.  

insoluble, dissolve