Process of Science: If any single test of a scientific hypothesis contradicts it,the hypothesis must be revised.
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Q17: Which of the following is always true
Q18: What do we mean by the diffraction
Q19: What causes stars to twinkle?
A)It is intrinsic
Q20: Why do astronomers need different telescope designs
Q21: A radio telescope and an optical telescope
Q23: X-rays from astronomical objects can only be
Q24: Given that the Moon has an
Q25: X-ray telescope mirrors are very similar to
Q26: Suppose the two headlights on a
Q27: The Hubble Space Telescope is famous because,at
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