Which best describes the ph scale?

a) acids measure below 7.
b) bases measure below 7.
c) acids and bases measure above 7.
d) bases and acids measure at 7.

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

20 drops hope this