Final answer:
A sole executive agreement is likely to be in effect longer than is a treaty - False.
Step-by-step explanation:
A sole executive agreement is false. It is true that a treaty is likely to be in effect longer than a sole executive agreement. The difference between a sole executive agreement and a treaty lies in the process of ratification and approval. A sole executive agreement is an agreement made by the President without the need for Senate approval, while a treaty requires Senate approval.