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Ancient Chinese astronomers recorded the appearance of what phenomenon in 1054 A.D.?
Scientific Awareness
The level of knowledge and understanding about scientific concepts, principles, and discoveries among individuals or a community.
Developing Countries
Nations with a lower level of industrial capability, technological sophistication, and economic productivity.
Acquired Disease
An illness that is not present at birth but develops after birth, often as a result of infection, environmental exposure, or lifestyle choices.
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