When you eat an apple, the process of digestion involves -
A. physical change only.
B. chemical change only.
C. physical and chemical change.
D. phase change.
Your answer is C. First, you chew the apple. Then the fragments of the apple go down into your stomach. The acid (which is chemical) breaks down the fragments of the apple in your stomach. And then, the apple comes out of your body through your own bodily substances.