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.
Meaning of The Mexican flag. The meaning of the Mexican flag changed slightly over the course of time. The first national flag contained extensive heraldic symbolism inherited from Spain. It relied extensively on a flag that King Phillip IV of Spain granted for the use of the Celaya Regiment in 1669. In 1856, the Mexican government adopted important legal reforms. It acted to clarify the meaning of the flag's colors in order to update symbolism associated with the national flag. New legislation passed in 1859 and 1860 during the term of Liberal President Benito Juarez Garcia.