The two main items that are traded in Ghana are gold and salt. The correct answer is A.
Kankaaaaaaahajajajajajajajajajajakakakaksksks
The outer ring is is the ever first ring but the inner ones tell if it’s old or not.
Answer:
Species are adapted to their environments. By understanding the interactions within an ecosystem, scientists can develop an understand of how populations evolve (develop gradually) in response to their environment.