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This is a correct answer to the following question about Solar energy. Yes or no? Answer: Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air . Question: what is the main source of power in today's america factories?
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No

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This is a correct answer to the following question about CAPTCHA. Yes or no? Answer: These tests are designed to be easy for a computer to generate but difficult for a computer to solve, but again easy for a human. Question: what is captcha code
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No

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This is a correct answer to the following question about Antibody. Yes or no? Answer: Five different antibody isotypes are known in mammals, which perform different roles, and help direct the appropriate immune response for each different type of foreign object they encounter. Question: what antibodies are produced in large quantities
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No