Which was the earliest civilization in the americas? the spanish the mayas the aztecs the incas

myas

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)

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.