La agricultura de mercado

4.1. El paso de la agricultura de subsistencia a la agricultura de mercado El paso de la agricultura de subsistencia a la agricultura orientada a la venta de productos, o agricultura de mercado, se…

Los nuevos espacios urbanos

5.1. Los nuevos espacios La ciudad difusa ha organizado una redistribución del espacio. Así, las actividades industriales se han visto alejadas de la ciudad, y la aparición de nuevas actividades…

Trophic relationships in ecosystems

4.1. Matter and energy in an ecosystem In an ecosystem, living things perform different functions in the process of production and transfer of matter and energy. They are divided into: Producers. These…

Introduction - Energy inside the Earth

The inside of the Earth is extremely hot and material that rises up from it is responsible for many of the geological phenomena seen on the surface. The Earth's energy is evident when volcanoes…

Complete. Light and shade

Complete the text. Light is a that propagates in a line in all directions. We can experiment with the production of using a light source and an extended light source. In a point light source, we see…

Check. Art at the end of the 18th century

Remember what you have studied in this section and answer the questions: Discuss European Rococo art. → What subjects are typical of (French) Rococo art? What characteristics of the Rococo movement…

Summarise. Crisis of the democraci and the Second World War (1919-1945)

Summarise the text. Write paragraph headings. The period 1918-1939 was an age of great political and economic instability. The First World War had destabilised Europe's economy and the United States…

Los bailes, danzas y otras manifestaciones expresivas

Aparato digestivo de los rumiantes

Presentación de diapositivas sobre el funcionamiento del aparato digestivo de los rumiantes.

Resuelve. Prismas (7)

¿Qué nombre recibe un prisma cuya base tiene 14 diagonales y cuya altura mide menos que las aristas laterales? El prisma se denomina prisma .