The Ottoman Empire maintained its strong economic and political presence in the Middle East, North Africa, and parts of Eastern Europe during the Renaissance. What was the key to
maintaining this vast empire?
Few foreigners were allowed to reside within its borders.
The government kept a tight control of its citizens.
It had a centralized economy and political structure.
It had strong religious ties binding its people and leaders.

It had a centralized economy and political structure

Explanation:

There are many reasons as to why the empire was as successful as it was, but some of them include its very strong and organized military and its centralized political structure. These early, successful governments make the Ottoman Empire one of the most important in history.

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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i really really really really really really dont know