Petroleum is used in manufacturing a wide variety of materials, and it is estimated that the world consumes about 90 million barrels each day. Concern over the depletion of the earth's finite reserves of oil, and the effect this would have on a society dependent on it, is a concept known as peak oil.
The National flag of St. Kitts & Nevis features green for our fertile lands, yellow for our year-round sunshine, black for our African heritage, and red for our struggle from slavery through colonialism to independence. It also displays two white stars on a black diagonal bar, symbols of hope and liberty.
5 colors: blue, yellow, red, black, white. Meaning of the flag of Swaziland: Blue represents peace and stability; red symbolizes past struggles; yellow stand for the mineral resources of the country. The shield, spears and staff symbolize protection from the country's enemies.eaning of the flag of South africa: Y represents the united country after the Apartheid regime. Red symbolizes blood; blue symbolizes the sky; green symbolizes the rich vegetation; black symbolizes African people; white symbolizes white people; gold color symbolizes the mineral gold.