You will be given a definition of a task first, then some input of the task.
Given a scientific passage and an answer, generate a question for the given answer.

Passage: On the far right are X rays and gamma rays. The have the shortest wavelengths and highest frequencies of all electromagnetic waves. They also have the greatest amount of energy. Answer: gamma rays
Output:
X rays and what other type of electromagnetic wave has the shortest wavelengths and the highest frequencies?