Question

a student takes notes in class. sound waves i. created by a vibration a. vibration: something that causes air molecules to move back and forth quickly and steadily ii. move through a medium a. solid b. liquid c. gas which line of her notes contains an error? 〇 i 〇 i a 〇 ii b 〇 ii c

Explanation:

Sound waves are created by vibrations which cause air - molecules to move back and forth quickly and steadily. They can move through solids, liquids, and gases (different media). All the statements in the notes are correct.

Answer:

None of the above (assuming there is an option like that, since no error is present in the given notes). If we have to choose from the provided options, the question has an incorrect premise as there is no error in I, IA, IIB, or IIC. But if forced to pick, we'd need more context or a correction in the question setup.