You need no formulas to answer this question.
Work Step by Step
This question asks us to determine whether a measurement is a measurement of length, area, volume, mass, density, time, or temperature. The first measurement is 25 ps. ps is a unit of time, it stands for picoseconds. There are 1 trillion picoseconds in a second. There is no math involved in this, units are just facts that you have to commit to memory,