explique la produccion del conocimiento como actividad exclusiva del ser humano ¿por que se afirma que el conocimiento es un producto social?

Opinion polls reveal that many people believe that the military buildup of the 1980s came at the expense of pressing domestic problems such as environmental pollution and deteriorating educational and transportation infrastructure. in short, people are becoming aware of

Though most presidents have claimed affiliation with a christian church, the only roman catholic president has been a) abraham lincoln. b) john f. kennedy. c) george washington. d) franklin d. roosevelt.

What greek scientist created a screw to move water for irrigation?