Answer :
The answer is B. Bubbles, foam, burning, and baking are all chemical changes. All the other options changed the substance into something new. The glass cup that shattered is still glass.
B. A glass cup falls from the counter and shatters on the ground.
What is a physical change?
A physical change is a change in which no new substance is formed after the change occurs
When a glass cup falls to ground , no new substance is formed, hence this change is a physical change
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