Question

Which of the following is/are ways to reduce friction?
(A) By using anti-friction metals
(B) By using lubricants
(C) By making stream lined bodies
(D) all of these​

Answer 1

Answer:

(D) All of these.

Explanation:

Since all these reduce friction.

Answer 2

Which of the following is/are ways to reduce friction?

(A) By using anti-friction metals

(B) By using lubricants

(C) By making stream lined bodies

(D) all of these

Answer:

(A) By using anti-friction metals

(B) By using lubricants

(C) By making stream lined bodies

(D) all of these

all of these is the correct answer option D