Question

multiple choice question according to 19th - century physicist lord kelvin, when a person can measure and express what they are speaking about in ____, they have proved that they know something about topic. options: hypothetical terms, examples, written form, numbers

Explanation:

Lord Kelvin emphasized quantitative measurement as a hallmark of true understanding of a topic; being able to express knowledge in numerical form is the key standard he cited.

Answer:

O numbers