Why were the cities of Timbuktu and Djenné important to the Mali Empire? Both were sites of important government offices.
Both were military outposts that defended the Mali Empire.
Both had important mosques and were centers for Islamic learning.
Both had large gold and salt mines that made the Mali Empire wealthy.

Both had important mosques and were centers for Islamic learning

Explanation:

per the notes

the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

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