In biology, the basis for conducting living processes. Much of life involves energy transfer. Energy is transferred from the surroundings of an organism into its body, and is also transferred within an organism's body. Energy is used by organisms to do things, such as growing or moving. When they do these things energy is transferred from one substance to another or from one place to another.
Black represents the occupation of foreigners, red represents the blood of freedom fighters, and green denotes Islam. In the middle of the flag is a mehrab, an arch in a mosque where the congregation stands, and a mender, a pulpit in a mosque. The mehrab and mender are both in white, and are enclosed by wheat. Effective date: 5 February 2002.