1. analyze the authors' purpose in describing the experiences of oswaldo valencia rosado
and luis enrique serrato pérez. what do they hope to convey with each young person's story

Use your vocabulary words to complete the sentences below. more of the world's population is now concentrated in heavily populated urban areas known as a this is quite a contrast from the past when or native groups were either farmers or — hunters and gatherers who moved between places in search of food. advanced technology has led to the integration of world economics and cultures, in the world's more developed countries. this integration requires , the responsible use and management of natural resources.

The african continent is home of the worlds largest desert and longest river . t or f

How can minerals crystallize from materials dissolved in water? check all that apply.