The property of materials that resist penetration or indentation by means of abrasion or scratching is known as:
A. Strength
B. Toughness
C. Hardness
D. Brittleness
Answer:C
The property of materials that resist penetration or indentation by means of abrasion or scratching is known as:
A. Strength B. Toughness C. Hardness D. Brittleness