Answer:
i think the answer is 3. .
<span>analysis using the fact that physical quantities added to or equated with each other must be expressed in terms of the same fundamental quantities (such as mass, length, or time) for inferences to be made about the relations between them.</span>
Answer:B
Explanation: A linking verb connects a subject to a verb and also describes the action that is done by the subject. The linking verb cannot express an action on its own. It needs the subject of the sentence to express an action.
An example of a linking verb is "be" which is the most commonly used. The purpose of "be" is to indicate the state of the action subject in a sentence.