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Why did the Universe appear opaque during its early stages?a)Due to the absence of photons.b)Due to the scattering of photons by free electrons.c)Due to the presence of dark energy.d)Due to the formation of galaxies.Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Why did the Universe appear opaque during its early stages?a)Due to the absence of photons.b)Due to the scattering of photons by free electrons.c)Due to the presence of dark energy.d)Due to the formation of galaxies.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why did the Universe appear opaque during its early stages?a)Due to the absence of photons.b)Due to the scattering of photons by free electrons.c)Due to the presence of dark energy.d)Due to the formation of galaxies.Correct answer is option 'B'. Can you explain this answer?.

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