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1. How did ancient people make use of their observations in the sky? A. They used it to plan for war and conquer new lands. B. They used it to entertain themselves during the night. C. They used it to predict their future and make stories of heroes. D. They used it for telling time, navigation, agriculture and religious practices
Ancient sailors used stars and constellations to guide their travels. Polynesians, for example, sailed among the Pacific Ocean islands by watching stars. To explain why planets seemed to change direction, Ptolemy used old calculations by Hipparchus to understand planetary motion.
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