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The U.S. Department of Energy has set a goal of reaching less than $1 a watt—not just for the solar panels, but for complete, installed systems—by 2020. Green thinks the solar industry will hit that target even sooner than that. If so, that would bring the direct cost of solar power to six cents per kilowatt-hour, which is cheaper than the average cost expected for power from new natural gas power plants. All parts of the silicon solar panel industry have been looking for ways to cut costs and improve the power output of solar panels, and that’s led to steady cost reductions.

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Which choice best describes data from the graph that support the conclusion?

1. Natural gas is the most cost-effective because it is abundant and can be reproduced, but researchers are finding ways to use other forms of energy to offset costs.

2. The U.S. Department of Energy wants to cut costs of all forms of energy production to make it more affordable, with a goal of 2020.

3. Solar energy has its setbacks, like being expensive to reproduce, but researchers are finding ways to increase applicability, like decreasing costs.

4. There are variations of solar energy that require extensive installation systems, so researchers are streamlining the approach for installation and increasing output.

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Example

Choice A is _______ because _______.

Choice B is _______ because _______.

Choice C is _______ because _______.

Choice D is _______ because _______.

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Elizabeth

Bella

Muhammad

Aleksandra

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Hi

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Chelsea

Jamie

Aneliz

Asma

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wesley

reema

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the graph should support the cost of the solar being cheap

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1. Natural gas is the lowest while solar is the highest 2. They want reduce costs because solar is more effective and less expensive 

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1. Natural gas is the lowest while solar is the highest 2. They want reduce costs because solar is more effective and less expensive 

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the graphic shows that solar has the most cost(?)

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Natural gas has lowest cost

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Natural lowest is the lowest while solar is the highest 

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Natural lowest is the lowest while solar is the highest 

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choice 3; shows solar is expensive but supports the text through the ways scientists are trying to lessen the cost

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that compared to natural gas, solar energy gives off more energy (watts) and is the cheapest of the rest of the energies.

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It connects to the text which talks about solar energy and mentions how expensive it is which is shown by the graph

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Natural gas was more cost effective than the solar power

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Natural gas was more cost effective than the solar power

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ava, laura, luis

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As the Department of Energy looks for more cost efficient sources of power for solar panels, the rate of cost reduction increases

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1. Choice A is incorrect because natural gas is not the main idea of the text  2. Choice B is incorrect because it is vague and it is just summary 3. Choice C is correct because it uses data from the text 4. Choice D is incorrect because it does not get to an end

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1. Choice A is incorrect because natural gas is not the main idea of the text  2. Choice B is incorrect because it is vague and it is just summary 3. Choice C is correct because it uses data from the text 4. Choice D is incorrect because it does not get to an end