Answer:
Study of the Nigerian people and its vast spread of ethnic groups can help in unifying the diverse ethnic groups as one understand the culture conventions and principles associated to each ethnic group making them to understand one another which can promote unity.
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Mali was influenced by other parts of the world by trade.
Answer:
Natural resources also affect where people live. People live near water and food for basic necessities. Water also allows for transportation. Changes in the environment force people to make a decision: stay and adapt to the change or move and adapt to a new environment.
Explanation: