8. ¿Cuál o cuáles de los horizontes del suelo crees que es el que garantiza la alta productividad del suelo de la región pampeana? Investiga cuáles son los aportes agroquímicos implementados por la industria agrícola-ganadera para aumentar su rentabilidad.

Ahill is made of rock particles of different sizes. which of these agents of erosion probably causes the hill to form? a- waves b- glacial ice c- wind d- flowing water

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

When the soviets created the borders of their central asian and caucus republics, the paid little attention to where each region’s ethic group lived. ethnic-related disputes exist along every sherd boundary in central asia. true false