The name of Africa’s longest river is the

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

Which statement about factories in the industrial revolution is not true? a) some of the first advances were in textile mills b) spinning machines used water power c) water power was replaced by steam power d) coal was imported to english factories for power answer d) coal was imported to english factories for power

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market