Question

Describ the smaller units of
distance​

Answer 1

Answer:

So the Planck length is the minimum distance one may probe. The Planck length refers to the internal architecture of particles and objects. Many other quantities that have units of length may be much shorter than the Planck length.

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Answer 2

Answer:

The millimeter is the smallest commonly used unit in the metric system. The abbreviation for millimeters is mm (for example, 3 mm). A millimeter would be used to measure something that is very small, like a seed.

The centimeter is the next smallest unit of measurement. The abbreviation for centimeters is cm (for example, 3 cm). Centimeters are smaller than inches. One centimeter is roughly the width of a staple. There are 10 millimeters in one centimeter.

On most rulers, both the customary units of measurement and the metric units of measurement are shown, so you can see millimeters marks, centimeter marks and inch marks.