Mercados del mundo (World Markets) (Spanish Version)

A scientific look at the natural processes that create waterfalls, and where they are likely to form.

Simple text introduces how different objects move, in different patterns and in different speeds, when pushed or pulled.

Es una increible aventura que te transportara al Antiguo Egipto, una de las civilizaciones mas misteriosas que han existido en la Historia. Laila, Alex y Guiomar te ayudaran a descubrir algunos enigmas de ese mundo fabuloso. Quieres ir con ellos ? Te gustaria conocer el poder magico de los antiguos egipcios ?

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.