Based on the information provided, here are the energy-generating technologies that the chart describes, along with the associated labels:
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Solar Energy
- Start up costs moderately high, operating costs low
- Renewable energy source, requires open space
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Natural Gas
- Start-up costs moderate; overall operating and fuel costs comparatively low
- Fuel nonrenewable; contributes to greenhouse gas levels
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Coal
- Start-up cost low; fuel/operating costs comparatively low
- Fuel nonrenewable; efficient use of fuel reduces greenhouse impact
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Geothermal Energy
- High start-up costs; zero fuel cost
- Renewable, no effect on greenhouse gases; may disrupt lithosphere
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Wind Energy
- Moderately high start-up costs; zero fuel cost; needs a back-up system
- Renewable energy source, no greenhouse gases; noisy; impacts bird populations
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Hydropower
- Very high start-up costs, minimal fuel cost
- Renewable energy source, alters land use and natural habitats
Feel free to fill in the blank spaces with the corresponding technologies and their labels as described above.