Which material were the sculptures found in nok, nigeria, made of?

Terracotta

Explanation:

Using clay, pottery, bronze and cast iron, the members of Nok civilization developed their own style by creating objects that are now considered sacred to most people living in north-central Nigeria. The main object produced by the African Nok culture was the Jemaa Head. Found in 1942, this object demonstrates the main features of Nok art:

The Nok liked to create objects related to human beings themselves. The features are striking and, according to experts, portray in a unique way the features of the people who made up the tribes of the region. However, most of the time, faces were not faithfully recreated. It is common to find human heads made of terracotta, but with distorted shapes, such as large jaws and disproportionate between the head and other parts of the body.