Geology. a basic law<span> of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.</span>
Strategy is a provides the logic behind with their planned actions.
Because the molecules that make them up move closer together and become more compact
Answer:
economic and educational backwardness
Explanation:
Thaddeus Stevens was representative of the State of Pennsylvania in the 1860s. A prominent Radical republican he fought for the equality of African Americans throughout his life. He led the crusade for universal education and Pennsylvania became the first state to provide free education. He not only acknowledged the economic and educational backwardness of African Americans but consistently fought to overcome them.
