"Bienvenido siglo XX" referente a "La teoria de la relatividad, de Albert Einstein, y el psicoanálisis de Sigmund Freud, como influyeron en la sociedad actual"

representative government

explanation:

american revolution: major events leading to declaration of independence. 1765-1766; tax introduced on legal documents to pay for defense of colonies. 1766: stamp act repealed after merchants protesting due to their goods not being bout and officials being threatened.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

i really do want to but i just don't know it i'm so sorry : (