El sintagma nominal i el sintagma verbal. L'oració

La lírica y la prosa en el Barroco

La literatura española en el siglo XIX

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…

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…

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…

Ways to save energy

Look at the pictures and answer the questions. Which of these measures do you apply? Which do you think are the most useful?

True/False. Photographic camera

Answer true or false: The diaphragm regulates the passage of light. The objective lens is convergent. The objective lens consists of three or more lenses. The image formed within the chamber is larger…

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…