Answer the following question given this paragraph: Ultrasound is sound that has a wave frequency higher than the human ear can detect. It includes all sounds with wave frequencies higher than 20,000 waves per second, or 20,000 hertz (Hz). Q: What do you call sound that has a wave frequency higher than the human ear can detect? Choices: - dynamic sound - supersonic sound - hypersonic sound - ultrasound A:
ultrasound