7.which physical property requires no tools, scales, or other equipment to determine?
a. hardness incorrect answer
b. fracture incorrect answer
c. color incorrect answer
d. cleavage incorrect answer

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

answerleaving cheese out to get moldy;