Answer:
The word "protracted" means lasting longer than expected, or unusually long, so what protracted most clearly means based on the context of the excerpt is how the time period of celestial motion studies must have lasted unusually long.
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Cannot find jobs
Answer:
mera ko Kuch patha Nahi ha
B, Frank walked in the house and set down his bag of books.
Answer:
answer A
Explanation:
descriptive words can help describe an image to a reader