Final answer:
Resource-rich areas have high concentrations of people and abundant natural resources, while resource-poor areas have many people but few resources.
Step-by-step explanation:
Areas that have both high concentrations of people and a large reserve of natural resources are often referred to as resource-rich areas or regions. These areas include countries or regions like Canada, Russia, Australia, Brazil, and Saudi Arabia.
On the other hand, areas with many people but few resources are considered resource-poor areas or regions. Some examples of such areas include Japan, South Korea, Singapore, the Netherlands, and Taiwan. These regions heavily rely on trade and import resources to meet their needs.