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प्रश्न
The total area of the observable universe is about ______ light-years.
विकल्प
9.3 billion
93 billion
93 million
9.3 million
MCQ
रिक्त स्थान भरें
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उत्तर
The total area of the observable universe is about 93 billion light-years.
shaalaa.com
Geo Centric Theory
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