changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Jul 01, 2020
Saved on Oct 13, 2021
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min = 60 60 shr = 60 min = 3,600 600 s d = 24 24 hr = 86,400 syr = 365 d = 31,536,000 s
Natural science / Universe