Question

Exercises Tick (~) the correct option 1. The substances which reduce friction are called (a) fluid (b) moist (c) lubricants (d) hard 2. Striking a matchstick produces fire due to (a) mechanical force (c) magnetic force (d) pressure (b) friction​

Answer 1

Explanation:

1. lubricant
2. friction

• option c
• option b

Answer 2

Answer:

1. The substances which reduce friction are called

c) lubricant

2. Striking a matchstick produces fire due to

b) friction

Hope it helps you.