Which statement is true for all minerals? a. they have a crystalline structure. b. they contain useful metals. c. they are made of silicon and oxygen. d. they are too hard to be scratched with a nail.

And economies a mixed economy has strong elements of both a. planned traditional market planned market traditional planned command b select the best answer from the choices provided ooo

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.

Explore the ways that boundaries influence identity, interaction and exchange. things to consider: what is the race/ethnicity. how easy is it to interact/trade with others.