Where are the world's major population clusters? What areas have sparse populations? Please answer this question in a short paragraph....

Where are the world's major population clusters? What areas have sparse populations? Please answer this question in a short paragraph. Refer to the world’s realms when you describe population distribution (North America, Europe, etc). You can add relative locations (for example, Eastern Europe, East Asia, Southeast Asia) for a more complete description. Do not refer to individual countries in this assignment.