Question

Powder of a solid lubricant delivered to the __________

b) composite material
c) film
d) surface
a) rubbing area​

Answer 1

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HERE IS YOUR ANSWER

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Powder of a solid lubricant delivered to the __________

b) composite material

c) film

d) surface

a) rubbing area

$\huge\boxed{\fcolorbox{cyan}{pink}{Answer:- }}$

Powder of a solid lubricant delivered to the rubbing area.

Therefore option a) rubbing area is correct.

Answer 2

Answer:

$a.)rubbing \: area$

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