Answer:EUROPEAN UNION - established a common market and a common currency
ORGANIZATION OF PETROLEUM EXPORTING COUNTRIES-sets oil production and prices for member nations
BORTH AMERICAN FREE TRADE AGREEMENT -encourages exchange of goods and services among member nations
WORLD TRADE ORGANIZATIONS- promote commerce and resolves commerce-related disputes
Explanation:
Scientists advanced the fields of algebra, calculus, geometry, chemistry, biology, medicine, and astronomy. forms of art that flourished were ceramics, metalwork, textiles, illuminated manuscripts, woodwork, and calligraphy.