Which of the following provided the common link for the major trade networks of China, India and North Africa? A Black Sea to the Mediterranean Sea​

The silk road

Explanation:

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it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

it is relaxation hope this