In a few sentences, explain how global civil society works. how is the practice of civil society different at a global level?

A civil society is a the aggregate of all the units: organisations and institutions, of the society that manifest the will and opinion of the society. A global civil society stresses the global collection of people of all countries. In practice this refers to a great range of activities, including international political and not only political organisations, the engagement of individuals in other countries' affairs, such as the international outrage at gender inequality in India.  

3. i would say one, but one is not prime nor composite.