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External forces in the formation of relief
EduBook Organización
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3.1. External forces Relief is not only the result of movements inside the Earth. External forces, such as the effect of water or wind, can also change the shape of the planet's surface. The action…
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Check. External forces in the formation of relief
EduBook Organización
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Review what you have studied and answer the questions: Which external forces have an effect on the formation of the Earth's relief? Of the different external forces that have an effect on the…
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Complete - Remember
EduBook Organización
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Complete: Air is a mixture of gases. The two main gases in air are and . You cannot see air because it has no . Air does not have any taste or . The is a layer of air that surrounds the Earth. Sailing…
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Self-evaluation 7 - Rivers and seas
EduBook Organización
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Which concepts do the following statements refer to: Rise and fall of sea levels caused by the Moon's magnetic influence on the waters of oceans and seas. Permanent body of water deposited in a…
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The weather (I)
EduBook Organización
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The weather The atmosphere is the layer of air that surrounds the Earth. The weather is what is happening in the atmosphere in one place at one time. The main features of the weather are temperature,…
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Self-evaluation 9 - Society and the environment
EduBook Organización
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Complete these sentences about the exploitation of resources with the missing word: The global rise in population has caused greater demand for land and natural resources. Although there are still many…
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Complete a summary. Energy
EduBook Organización
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Complete the sentences with the correct words: temperature hot changes renewable volume cold Non-renewable heat energy sources artificial The most common forms of energy are electrical and . The Sun,…
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Renewable energy sources
EduBook Organización
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Energy sources that will not run out are called renewable energy sources. Some examples are the Sun, water and wind. The energy that we obtain from renewable sources is called clean energy because it…
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Comprehension check (KET)
EduBook Organización
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Read the paragraphs about Chapter Two and choose the best word for each space. Brian went home and he was happy. But soon he e sad and weak. He always thought the King’s secret. He could eat or sleep.…
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Ocean dynamics
EduBook Organización
- 3567 visitas
3.1. How oceans and seas move The water in oceans and seas is always moving because of waves, tides and ocean currents. Waves Waves are caused by wind moving the water on the surface of the sea. The…
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