2. La Declaración Universal de los Derechos Humanos se redactó a raíz de. a-Los acontecimientos de la Guerra Civil Española
b-Los acontecimientos de la Segunda Guerra Mundial
C-Los acontecimientos de la Primera Guerra Mundial​

c. the dred scott v. sandford case,

treaties

explanation:

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

missouri compromise of 1820 which prohibited slavery