Final answer:
Presumption regarding international law refers to the concept of an assumption or belief that certain actions or behaviors are legally valid within the international legal framework. It is not a specific source of international law, but rather a guiding principle that helps govern the behavior of states.
Step-by-step explanation:
Presumption regarding international law refers to the concept of an assumption or belief that certain actions or behaviors are legally valid within the international legal framework.
It is a principle based on the long-time practices of states and customary law, which has developed out of functional necessity or broad consensus around moral behavior. Presumption is not a specific source of international law, but rather a guiding principle that helps govern the behavior of states.