

MCQOPTIONS
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1. |
The constellations of stars appear at different positions in the sky at different times during night mainly ________ |
A. | Because earth rotates about its axis |
B. | Because earth revolves round the sun |
C. | Because of optical illusion |
D. | Because celestial bodies are changing their positions all the time |
Answer» B. Because earth revolves round the sun | |