Kosta is a pet form of the name Konstantin (Czech, German, Hungarian, Russian, Scandinavian, and Slavic) in the Slavic language as well as a variant of the name Constantine (English).
Energy Sector. The U.S. energy infrastructure fuels the economy of the 21st century. Without a stable energy supply, health and welfare are threatened, and the U.S. economy cannot function.he U.S. energy infrastructure fuels the economy of the 21st century. Without a stable energy supply, health and welfare are threatened, and the U.S. economy cannot function.
1. United States. The US economy is the largest economy in the world in terms of nominal GDP (measured at current prices in US dollars). The $17.41 trillion US economy is approximately 22.44 percent of the gross world product.