Oil. An oil is any neutral, nonpolar chemical substance, that is a viscous liquid at ambient temperatures, and is immiscible with water but soluble in alcohols or ethers. Oils have a high carbon and hydrogen content and are usually flammable and slippery.
Mexican flag is full of national symbolism. The green strip represents the Independence Movement. The white stripe represents the purity of the Catholic faith. The red stripe represents the Spaniards that joined in the quest for Independence and the blood of the national heroes. The emblem-shield symbolizes the Aztec heritage.
The modern Mexican flag celebrates a tradition of unity between Spanish immigrants and the approximately 700 indigenous Native American peoples who resided in Mexico at the time the Spanish Conquest began in 1517. The people of Mexico united to obtain freedom from colonial rule during the early 1800s.