Which statement best describes the development of Timbuktu?
It was known for violence, warfare, and constant turmoil.
It controlled the salt mines and oil fields.
It was a trade hub that became a center of learning and culture.
Its natural harbor helped it develop a strong navy.

Which of the following statements about imprisonment rates in the united states is true? the united states imprisons people at a higher rate than russia, mexico, or canada. the united states imprisons people at a lower rate than russia or south africa, but higher than israel. the united states imprisons people at a lower rate than russia, mexico, or canada. russia, south africa, and mexico each imprison more people than the united states.