What was the estimated population of the Roman Empire?

The Roman Empire was comprised of some 65 million people. 21% of the worlds total.

Explanation:Assuming the world population was still roughly about 300 million people, this would mean that the Roman Population was approximately 21% of the worlds total.

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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answer: c  

the factory goes out of business, causing the workers to lose their jobs.

explanation: