The logical principle that allows objects to be grouped according to some characteristic that they share is called a. classification b. reversibility c. concrete thought d. transitive inference

The correct answer is option a. "classification".

Explanation:

Classification is defined as the action of making groups of elements according to shared qualities or characteristics. Classification is an important practice to make processes more efficient. Additionally, the practice of classification allows to identify and study new elements easily, because the characteristics of the groups are clearly stated and new elements would fit in any of the groups.

balearic sea - is a body of water in the mediterranean sea around the balearic islands. baltic sea - is a mediterranean sea of the atlantic which is enclosed by scandinavian and baltic countries. barents sea - is a marginal sea in the artic ocean located off the northern coast of norway and russia.