Compare to hardness of gypsum to an everyday substance

Hardness is the opposition that materials offer to alterations such as penetration, abrasion, scratching, shearing, and permanent deformations among others. During the course of history, during the study and classification of minerals, there was a moment when it became pertinent to establish a method that would allow to discern the different degrees of hardness of rocks and minerals.

Explanation:

first one is the correct answer

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.