Which are the centres of agriculture and metallurgy in Africa and their contribution to the origin of agriculture?

In Africa, centers of agriculture include the Nile Valley in Egypt, the Ethiopian highlands, and the Niger River Valley region. These areas were crucial for the origin of agriculture due to their fertile soils, suitable climatic conditions, and availability of domesticable plants and animals. In terms of Metallurgy, notable centers in Africa include the Great Rift Valley and regions in modern-day Nigeria and Tanzania, where ancient metalworking activities date back thousands of years. Metalworking allowed for the development of key tools and technologies that further accelerated agricultural practices in these regions.