Demonstrating opportunity cost is done through production

The investor's opportunity cost expresses the cost of a predictable dilemma. If you prefer one choice over a different, then the cost of preferring that choice enhances your opportunity cost. For instance, there is an opportunity cost of preferring to support a business with a mortgage over advertising stock.

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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