El teatro en el Barroco. El Neoclasicismo

Final Autoevaluation 1.02 - Plant nutrition

J. van Helmont's experiment Van Helmont (1577-1644), a Flemish doctor and chemist, thought that in addition to water, air and substances in soil, other elements must be necessary for plant…

Analyse. A text

Polyembryony Polyembryony is a type of sexual reproduction in which an embryo fragments into several identical embryos. They each develop independently. The young of each litter are of the same sex, as…

Complete. Trophic relationships in ecosystems

Complete the table.

Work it out. The natural environment

Remember what you have studied in this section and answer the questions: What environmental conditions prevent the existence of life on the other planets in the Solar System? Why is light a limiting…

Calculate. Pressure

Calculate the pressure exerted on snow by the feet of a man with a mass of 81 kg if you know that the total surface area of the soles of his boots is 0,6 m2? Note: g = 9,8 m/s2. P = Pa

Choose. Upthrust and buoyancy

Choose the correct answer: What equals the upward thrust experienced by a submerged object in a liquid? What is the apparent weight of an object? What happens if the weight is less than the upward…

True/False. Heat

Answer true or false Heat is the energy transferred from hot bodies to cold bodies. Heat also is sometimes called thermal energy. Cold bodies give cold to hold bodies. Hot bodies have less internal…

The collapse of absolutism

Towards the end of the 17th century, British politics experienced dramatic changes. At the same time, a series of reforms, known as enlightened despotism, spread throughout Europe. 4.1. The English…

Peasant revolts

We believe that peasants should not seek any other economic goal but the fairest distribution of land and farming equipment. Our hope lies with the Andalusian peasants, who we consider capable of…