Inca, also spelled Inka, South American Indians who, at the time of the Spanish conquest in 1532, ruled an empire that extended along the Pacific coast and Andean highlands from the northern border of modern Ecuador to the Maule River in central Chile.
As divergence is defined as constructive plate boundary with opening in between the two slabs of tectonic rock being an heavy and oceanic plate the divergence is found mostly in where the new lava flows are being created and the newer rock are thus located near to the surface of the ridges as a result of the upwelling of hot molten lava from the magma chambers below.
Other examples being the mid-Atlantic ridge, red sea ridge, and eastern pacific rise.
And other popular ridges in the world that have lava flowing from the base and thus demarcate the divergent boundaries with continental crustal movement based on some sentiments form below, as slab push and slab pull.
Towns grew up along the rivers which had access to the sea. Rivers also provided protection from invaders. Farmers grew crops in the fertile fields that surrounded the towns. The lack of mountains was good for farming, but it made the towns easier to be invaded by enemies.
