There is 1 million seconds in a Mega-second.
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A mega second is one million seconds,a pico second is one trillionth of a second,multiply 1,000,000,000,000 by 1,000,000 = a quintillion (1,000,000,000,000,000,000)
There is no such unit as "macro second".
There are 10-15 seconds in a femtosecond.
Two. The first is TEN and the second is SECONDS
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