Question

how many nanogram are there in a mass of 2exagram​

Answer 1

Hii there

here is your answer

A nanogram is a billionth of a gram so it is astronomically tiny. I can't name anything that weighs a nanogram that you might understand, so lets go the other way: The mass of a grain of salt is approximately 58,500 nanograms. a poppy seed weighs approximately 300,000 nanograms.

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