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.
Making the world better, one answer at a time. The colors of the national flag represent Estonia's history, nature and folk costumes. The blue stripe represents faith, loyalty and devotion as well as the sky, sea, and lakes.he colours on the Aboriginal Flag mean:     Black-Represents the Aboriginal people     Red-Represents the Earth and the spiritual relationship with the land â¦ , and     Yellow-Represents the Sun, the giver of life.