Final answer:
Andrea and Nick are unable to get resources due to environmental degradation resulting from unsustainable exploitation of natural resources, the tragedy of the commons leading to overuse, and the resulting scarcity of resources that become depleted.
Step-by-step explanation:
Andrea and Nick are facing challenges in obtaining resources due to a variety of factors that include environmental degradation, the tragedy of the commons, and resource scarcity. The heavy reliance on natural resource exploitation such as oil, gas, and timber, without adequate sustainable practices or conservation measures, leads to environmental degradation. This can result in the depletion of renewable resources, such as soil and water, beyond their capacity to regenerate. Moreover, the tragedy of the commons explains how shared resources tend to be overexploited because individuals have the incentive to maximize their personal benefit without considering long-term consequences for the resource or the community. This situation can lead to a scarcity of resources, making it difficult for individuals like Andrea and Nick to access them.