Question

Which of the following is not an example of a physical change?

a
cutting a piece of string in half
b
crumpling a piece of paper into a ball
c
freezing water into an ice cube
d
letting your food in your lunch box rot in your locker

Answer 1

Answer:

Explanation:

Cutting a string in half because

b is irreversible

c is a cheical and d is also a chemical change