A thousandth of a micrometre is a nanometre.
A thousandth of that is a picometre.
A thousandth of that is a femtometre.
A thousandth of that is a attometre.
A thousandth of that is a zeptometre.
A thousandth of that is a yoctometre.
There is also 1/10 nanometre, which is known as the Angstrom unit.
An alternative answer to the question is, half a micrometre, a thrid of a micrometre, a quarter of a micrometre etc.
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Yes, they are.
No.This is because micrometer is smaller than the millimeter but the millimeter is much smaller than the kilometers so the correct answer is NO.
Of course there are. How else would you measure things smaller than a millimeter? There are Micrometers, nanometers, angstroms and picometers
A staph bacteria is about 1,000 times smaller than a millimeter, so it is measured in micrometers. The actual size is 0.6 micrometers.
nanometer is smaller as it is 0.000000001 whereas micrometer is 0.000001