Pure blue, in the middle, has a wavelength of 470 nanometres. In painting and traditional colour theory, blue is one of the three primary colours of pigments, along with red and yellow, which can be mixed to form a wide gamut of colours.
Endowed with significant natural resources, including ample fertile land, regular rainfall, and mineral deposits, it is thought that Uganda could feed all of Africa if it were commercially farmed. The economy of Uganda has great potential, and it appeared poised for rapid economic growth and development.gricultural products supply nearly all of Uganda's foreign exchange earnings, with coffee alone (of which Uganda is Africa's leading producer) accounting for about 27% of the country's exports in 2002.
China National Petroleum Corporation (CNPC) is a major investor in South Sudan's oil sector. South Sudan's economy is under pressure to diversify away from oil as oil reserves will likely halve by 2020 if no new finds are made, according to the International Monetary Fund (IMF).