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Answer. Light, shadow and penumbra
EduBook Organización
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Remember what you have studied in this section and answer the questions: What is a light ray? Light gives off energy. Give an example of something that shows this.
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Check. The reflection of sound
EduBook Organización
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Remember what you have studied in this section and answer the questions: What is the reflection of sound? Explain an echo. Why is a minimum distance needed to hear it?
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FInal Autoevaluation T12 06 - Waves. Light and sound
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Describe each of the following scenes and explain what you know about them:
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Match. New models of social organisation
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Match each definition with the correct concept: It was founded in 1834 by workers of various trades. It opposed the mechanisation of production systems by destroying machinery and setting fire to…
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The return to absolutism
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I do not only lack allegiance to the Constitution and any decree of the Cortes (...), but I also declare the Constitution and such decrees void and without value, now and at any time, as if such acts…
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Final self-evaluation T04 02 - Spain in the 19th century: building a lib...
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Match each sentence with the correct subject: Under the new centralised state, nationalist movements began to emerge in several regions of Spain. Ferdinand VII's death in 1833 marked the beginning…
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War on free trade
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Today's free traders threaten to leave us all idle, opening doors to foreign goods. So we who pay today, who produce, declare that we ask only to live from our work. If grain, fabric, cloth, come…
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Match. 19th century artists and works
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Match each artist with the correct artistic style: Delacroix Van Gogh Canova Courbet Il Canaletto Gaudí Renoir Friedrich
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Look. The economic crisis
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Look at the map. In which country did the economic crisis begin? Where did it spread to?
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Final self-evaluation T9 10 - Crisis of the democracies and the Second W...
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Match each definition with the correct concept: Meeting held in 1946 in which the allied powers definitively redrew the map of Europe. Word of Greek origin that means 'sacrifice by fire' used…