Because it is an abrasive i.e a material which can corrode another. this helps in making emery paper.
Heres a few examples- Sand paper is abrasive. the sex i had was abrasive. abrasive means rough, coarse, etc.
Wet and dry paper is an abrasive paper that can be used with water and other liquids. This means it can sand some plastics and metals that dry paper cannot
Yes.
because it is hard
Litmus paper is another name for pH paper. They are synonymous in name and function.
Usually refinishing paint
A solid abrasive material is a mineral which can wear away part of another solid by rubbing. A common solid abrasive is diamond.
Coated abrasive .
Abrasive paper is also called emery paper or "sand" paper. It a sheet of strong paper onto which some glue is pasted on one side and into this wet clue particles of sand (or other rough material) are stuck. Once the glue dries, the rough side of the paper can be used to rub (and smooth) an object (or file your nails).
To keep the removed particles from clogging up the paper and make it continue to cut longer.
A tough, almost abrasive toilet paper. Predominantly found in the past in public toilets, schools and prisons.