Question

Friction between two flat surfaces cannot be reduced by:

a) greasing

b) polishing

c) using ball bearing

d) decreasing the area​

Answer 1

decreasing the area is the correct answer

Answer 2

Answer:

please mark my Brainliest

(c) is a correct answer

Explanation:

Friction can be minimized by using lubricants like oil and grease and by using ball bearing between machine parts. A substance that is introduced between two surfaces in contact, to reduce friction, is called a lubricant.