The best unit for the measurement of length of eyelash is millimeters
A fundamental unit of measurement is a unit of measurement in which other units are derived from, it includes length often expressed as follows;
- kilometers; for large distances
- meters for large lengths of objects
- centimeters; for small distances or lengths of objects
- millimeters; for relatively small lengths, like keys, eyelashes etc
Thus, the best unit for the measurement of length of eyelash is millimeters
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