I'm not positive but I think it means that the resources that have to be used are difficult to get a hold of or very rare. This could mean a few different things though.
The main economic resource of difficulty is scarcity of resources.
a) What is meant by the term "sustainable natural resources"?
forest
there are not enough resources to do a job effectivly e.g not enough doctors to run a department effectively and efficiantly. There isn`t enough information on seizures to tell them apart. there isn't enough care workers in a care home to deal with all the service users needs.
Any resource may eventually be destroyed
Any resource may eventually be destroyed
Any resource may eventually be destroyed
Operational difficulty refers to the challenges and obstacles that organizations face in executing their daily operations effectively. This can include issues related to resource allocation, process inefficiencies, communication breakdowns, and unexpected disruptions. Such difficulties can hinder productivity, affect service delivery, and ultimately impact an organization's overall performance. Addressing operational difficulties is essential for improving efficiency and achieving strategic goals.
the inability of competing firms to obtain resources from other firms
I think you meant DD points. Those are for diving. They stand for Degree of Difficulty.
the difficulty of setting railroad schedules over long distances
animals were meant to be hunted