D. The Grand canyon's layers get older from bottom to top
The deeper you go, the older the layer
At the conclusion of the Spanish American War, the United States gained Cuba as its Protectorate, which eventually led to the Cuban War of Independence and the subsequent rise of the Philippine–American War
The Nazi's created concentration camps all over Europe in order to carry out Hitler's "Final Solution." Hitler's "Final Solution" was based around exterminating all European Jews. In order to do this, he developed concentration camps in which systematic killing took place.
These killings took on several different faces. This included extermination chambers, mass shootings, and cremating individuals. These extreme acts of physical violence resulted in the death of millions of European citizens.
The new leadership of the party experimented with greater economic flexibility.