Answer :
Australia and New Zealand have many natural resources.
Explanation:
The Oceania region is an enormous region which has one continental mass in it and many island groups scattered across it. When it comes to resources, they are not dispersed equally throughout the region, but instead they are concentrated at some places, while lacking in others.
Australia and New Zealand are the two areas where there is an abundance of resources of multiple types. This has led to this two countries to become the leaders of this region, especially when we speak about economy. Unfortunately for the rest of the countries in Oceania, the lack of resources makes them highly dependent on the aforementioned two.