Answer:
Tourism: the commercial organization and operation of vacations and visits to places of interest.
Leisure: free time.
Development: the process of developing or being developed.
1a(1) : a binding custom or practice of a community : a rule of conduct or action prescribed (see prescribe sense 1a) or formally recognized as binding or enforced by a controlling authority. (2) : the whole body of such customs, practices, or rules The courts exist to uphold, interpret, and apply the law.
Answer:
Sources of international law include treaties, international customs, general widely recognized principles of law, the decisions of national and lower courts, and scholarly writings. They are the materials and processes out of which the rules and principles regulating the international community are developed.
It has as much influence as you allow it to. Imo it’s good to establish a flexible set of beliefs before seeing what others think so that you can be prepared without others having influence on it. However, I remember keep these beliefs flexible because you never know when you might change them and they should always be changing :)
Hope this helps!