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2. The second age – the managed exploitation of heat from the Earth –
really began about fifty years ago with the first piped heating systems in Europe
and the USA.
3. The third age (ca. 1950–1970) was a period of slow consolidation, with
systems developing slowly.
4. The fourth age (1973–1980) was the golden age of geothermal energy.
5. By operating geothermal systems as a closed loop, and reinjecting the
contaminants along with the cooled water, the environmental impact can be
increased.
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Упражнение 6.
Ответьте на вопросы.
1. What is an example of a geothermal direct use application?
2. What technology allows high efficiency?
3. When are there no CO
2
emissions?
4. How many units have been established in Louisiana?
5. Where is currently the main activity?
6. What countries are the members of the Geothermal Heat Pump
Consortium?
7. What are the benefits of geothermal technology?
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Упражнение 7.
Determine the main idea of each paragraph.
TEXT 3
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