human
Question: Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes?

Choices:
A) There is a change in how the objects are used.
B) There is a change in the appearance of the objects.
C) There is a change in the materials from which the objects are made.
D) There is a change in both the appearance of the objects and the materials from which they are made.
gpt
The correct answer is 1: There is a change in the appearance of the objects..