La economia extractiva enriquece la cultura de colombia?, por qué?

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

Which characteristics are true of the arabian desert? choose all answers that are correct. has land mostly below sea levelcovers almost the entire arabian peninsulacontains the largest sand sea in the worldhas very few people living there