Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
--------
Question: Wave amplitude and wavelength are two important measures of wave size.

Answer: Wave amplitude and wavelength are two important measures of what?


Question: The reverse process of moving material into a cell is the process of exocytosis.

Answer: The reverse process of moving material into a cell is the process of what?


Question: Ultrasound, a diagnostic technology, uses high-frequency vibrations transmitted into any tissue in contact with the transducer.

Answer:
What diagnostic technology uses high-frequency vibrations transmitted into any tissue in contact with the transducer?