Question

5. Pencils become smaller with use because
(a) the lead sticks to the paper
(b) friction causes wear and tear
(c) lead gets rubbed with the surface of the paper
(d) all of the above​

Answer 1

When you write there is friction between the pencil and the paper. Friction causes wear and tear. This friction causes the leads to break and thus the lead get smaller.

Answer 2

Answer:

D all of the above is the correct answer.....