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Unit 5: The Atmosphere
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Acid rain (n): rain or snow which are acidic due to the presence of secondary pollutants. air pollution (n): when the composition of the air changes due to the presence of contaminants. aurora borealis…
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Complete - Remember
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- 1667 visitas
Complete: In our great-grandparents' time, houses did not have . They used oil lamps. Most children left when they were 10 or 12, and went to work. In our grandparents' time, flats had…
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Complete. Nuclear energy
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Complete the text about nuclear energy with the correct words: electricity radiation uranium Nuclear power stations use as a source of energy. They use it to produce . The great disadvantage of this…
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Non-renewable sources of energy
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4.1. Coal Coal is a solid, black rock. It is the fossilised remains of huge masses of vegetation buried under the ground millions of years ago (figure 1). It is used mainly as fuel in coal-fired power…
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Investigate. Electrical energy
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The amount of electrical energy produced in hydroelectric power stations depends on the amount of water stored in the reservoir. When there is a drought, less electrical energy is generated because…
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Important materials
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There are many materials that are very important and useful. 6.1. Metals Metals are common materials that are extracted from minerals. They are used to conduct electricity, build buildings and make…
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Match. The colonies resources
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Match each definition with a concept: Black mineral rich in carbon used as a fuel. Hard, shiny metallic element with magnetic properties. Metallic chemical element, bluish-white in colour, used to make…
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Did you know...
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After World War II, the governments of many countries nationalised certain services, including transport, water, electricity and healthcare. These services were created and managed with money from taxes…
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Responsible energy consumption – we can all help
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We can all contribute to responsible energy consumption by: Consuming less electricity at home: switch off unnecessary lights, switch off the television when you leave the room, use low consumption home…
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Analyse. A text
EduBook Organización
- 1415 visitas
Energy and sustainable development The way of life in developed countries requires huge quantities of energy. If non-renewable sources of energy continue to be used up at the current rate, they will be…
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