In retaliation for the actions of the united states concerning its support of israel, in 1973 opec countries ceased exporting oil to the united states. which term refers to one nation or group of nations isolating another nation by stopping trade?
a) blockade
b) boycott
c) embargo
d) quota

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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