Final answer:
The World Trade Organization (WTO) promises to remove unnecessary trade barriers and improve the market for trade in services.
Step-by-step explanation:
The subject of this question is Social Studies and it is appropriate for High School level.
The organization that promises to remove unnecessary trade barriers and improve the market for trade in services, which accounts for two-thirds of global GDP, is the World Trade Organization (WTO).
The WTO is a more permanent agreement that covers trade in services and intellectual property as well as physical products. Its goal is to ensure that trade flows smoothly and freely throughout the world, although critics argue that it favors rich nations over poor nations.