According the passage, double-paned windows a. are energy efficient. b. should only be used as replacement windows. c. should only be used in new additions to homes. d. will lower your heating costs by 50%.
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Answer:
B
Explanation:
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dj alko jab aapne ghar ja raha tha tab vooo dekha ki vooo ek nubra ff khel rahe hai usne choka
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