Conservar y restaurar papel

Discusses the role of the gases surrounding Earth and the relationship of the atmosphere to weather. Presented in English and Spanish.

Learn all about the history and cultural significance that the exciting Iditarod race event holds around the world today. This title is complete with historical and modern photographs, as well as a glossary and a closer look at the rules for mushers and their dog teams. Aligned to Common Core Standards and correlated to state standards. Abdo Kids Jumbo is an imprint of Abdo Kids, a division of ABDO. Translated by native Spanish speakers and immersion school educators.

With simple examples that are easy to relate to, this basic review of some of the building blocks of economics will help readers easily grasp the concepts. With language that is conversational without being too casual, readers are engaged throughout as they learn about not only these basic concepts but how they fit into the whole economic scheme of things, such as where goods come from. Readers will learn about the three factors of production, as well as what happens when resources are lacking and how that influences the entire economy.

Este libro contiene información ilustrada que describe una época, a fines del siglo XIX, muy importante en la historia de México. En ese tiempo Porfirio Díaz fue presidente de la República y su ejercicio del poder dio nombre a un periodo de la historia mexicana conocido como Porfiriato. Durante su mandato, la economía mexicana se estabilizó y el país experimentó un desarrollo económico sin precedentes: se invirtió capital extranjero en la explotación de los recursos mineros; la industria minera, la textil y otras experimentaron una gran expansión; se construyeron vías férreas y ...