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Earth as a Planet — Geography STD 9 — Question

ICSE BoardEnglish MediumSTD 9GeographyEarth as a Planet2 Marks
Question
Which unit is used for measuring distances in the universe?
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Answer

The unit used for measuring distances in the Universe is the light year. One light year is defined as the distance traveled by light in a vacuum in one year.
One light year = 95 × 1012 km

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