In a longitudinal wave, the motion of the medium is parallel to the direction of the wave. This means that the particles move left and right which in turn makes the other particles start to oscillate.
The UNIA founded by Marcus Garvey has a constitution which defines red, black, and green as the Pan-African colours: red representing the noble blood that unites all people of African ancestry, the colour black for the people, green for the rich land of Africa..
In order of tradition and value, 1)weaves, 2) tie dyes, 3) batiks, and 4) industrial prints represent the four types of cloth Africans use to make clothing. Woven Cloth. This is the oldest and most valuable type of fabric in Africa. It is also the most time-consuming to make.