Question

sharpening a knife is a physical change​

Answer 1

Answer:

yes

Explanation:

it's a physical change because it gets blunt time by time.

Answer 2

Answer:

This is because for light to form in the bulb, the inert gas present is made to burn by passing electricity, this is a chemical change. c) Sharpening a knife's blade - physical change. No new substance is formed, no colour change, and is temporary, thus it i s a physical change.

Explanation:

hope it's helpful..