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Check. Renewable sources of energy
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Remember what you have studied in this section and answer the questions: Ask a classmate to define panel, crop, blade, dam and harness. Give two different uses of solar energy. Describe how geothermal…
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Answer. Alternative energy sources 01
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What are the most common forms of alternative energy? Can you think of any others?
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Answer. Alternative energy sources 05
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Why do we need to find alternative energy sources?
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Answer. Traditional energy sources 02
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What are the disadvantages of traditional energy sources?
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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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True/false. Renewable energy sources
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Answer true or false: Energy from the wind is called solar energy. Clean energy does not cause pollution. A group of wind turbines is called a wind farm. Water stored in reservoirs contains kinetic energy.
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Answer. Alternative energy sources 03
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What are the advantages and disadvantages of each type of alternative energy?
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Answer. Non-renewable energy sources
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Remember what you have studied in this section and answer the questions: What will happen if we use too much of the Earth’s non-renewable sources of energy? What materials can we make with oil? What…
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Answer. Traditional energy sources 01
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What are energy sources? How can they be classified? Give examples of each type:
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