A. Movement : Friction
B. Iron : Steel
C. Wool : Cloth
D. Diamond : Abrasive
Correct Answer: Diamond : Abrasive ✔
Last Updated: November 24, 2021
A. Movement : Friction
B. Iron : Steel
C. Wool : Cloth
D. Diamond : Abrasive
Correct Answer: Diamond : Abrasive ✔
Last Updated: November 24, 2021