When the surface of solid materials scrape and grind against each other it is called ?

It's letter A) Abrasion.

ANSWER:

When surface of solid materials scrapes and grind against each other it is called abrasion.

EXPLANATION:

Abrasion is known as a process in which there is an open which is rubbed into a surface and skin tear off due to the friction. It is also called graze or scrap. Whenever there is friction while sliding all the way in the hard-rough ground, then that instance is termed as Road rash. So, whenever a solid material gets grinned among each other, then abrasion is observed.