A. descendants of the notable tribes and culture
B. scientific and technological developments
C. slave trading and colonialism
D. precolonial societies
Correct Answer: Option B
B. scientific and technological developments
Explanation
Scientific and technological development is the correct answer. The history of the early centres of civilization presents us with the discovery and use of woods, irons and other scientific objects for the creation of notable figures, and the provision of utilities in the early Nigerian societies. Notable are the Nok Culture, Ife Civilization, and the Benin Crafts and Artworks.
![Two spheres of masses 100kg and 90kg respectively have their centres separated by a distance of 1.0m. Calculate the magnitude of the force of attraction between them. [G = 6.70 x 10‾¹¹Nm‾²kg‾²]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Two spheres of masses 100kg and 90kg respectively have their centres separated by a distance of 1.0m. Calculate the magnitude of the force of attraction between them. [G = 6.70 x 10‾¹¹Nm‾²kg‾²]")
