The choices for the above question are: a. They have made all of the land arable b. They have cut down trees faster than they can grow back c. They do not use any land for farming d. They use all of the land for mining
People have changed the environment in parts of West and Central Africa because they have cut down trees faster than they can grow back. The answer to your question is B. I hope that this is the answer that you were looking for and it has helped you.
