Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

Discusses Weather And How Water Effects It, Talks About Seasons, Climate, Temperature, Storms And Weather Forecasting.

El libro ofrece un material para aprender español de forma novedosa, utilizando los planteamientos recogidos en el Marco común de referencia y en los Niveles de referencia para el español, que permiten ayudar al alumno a conocer, comprender y utilizar el español de forma práctica. Está constituido por seis módulos. Cada módulo está formado por los cuatro ámbitos de uso de la lengua (Ámbito personal, Ámbito público, Ámbito profesional y Ámbito académico) para poder utilizar la lengua de una manera más adecuada a cada situación. Propone un aprendizaje activo, dinámico y...

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Con un sentido de humor este libro ilustrado para niños y jóvenes cuenta la historia sobre la vida de los soldados romanos en el tiempo del emperador Adriano.