Question

What was a development of the Inca civilization?

A. the creation of drainage systems and canals for irrigation

B. the invention of a printing press

C. the creation of the most complex writing system in the Americas

D. the invention of the wheel-barrow

Thanks!

Answer 1

A. the creation of drainage systems and canals for irrigation

they used strings and beads... like how do you share informations like that? with knots and beads?