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What some types of minerals are like - The Earth's Crust
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Precipitates Many minerals are formed by precipitation. This occurs when water evaporates or when dissolved substances stop being soluble and fall to the bottom of the sedimentary basin. Some of these…
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Answer. Ores
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Find information to explain which metals are extracted from the following ores and what we use these metals for: galena - chalcopyrite - hematite - sphalerite - cassiterite - cinnabarite
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Match. How bacteria feed
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Match each group of bacteria with the way it obtains its food: photosynthetic bacterium parasites chemosynthetic bacterium saprophytes symbionts
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Final self-evaluation 2 - The Diversity of Life
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Match the beginning of each sentence with the correct ending. All of the Earth's ecosystems and their biodiversity... It is estimated that every year... If the current rate of extinction…
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Final evaluation 4 - The Animal Kingdom (I). Invertebrates
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Many simple animals (poriferans, cnidarians, planarians, etc…) live in aquatic environments. Explain why.
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Answer. The State and political organisation 01
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Apart from its exclusive powers, what other powers and responsibilities does the state have?
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Answer. Political organisation of society 01
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What is the purpose of national borders?
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Answer. Services, trade and communications in the EU 01
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- 1242 visitas
How important is the service sector for the EU's economy?
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Answer. Raw materials 03
EduBook Organización
- 1245 visitas
What are the two main groups that minerals can be divided into? What are rocks used for?
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Reflect. The tertiary sector
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Answer the questions: Give some examples of tertiary sector services. What types of services do you usually use? What types of trade are there? Why is the transport sector so important?