Given a scientific passage and an answer, generate a question for the given answer.

Ex Input:
Passage: All living things are capable of reproduction, the process by which living things give rise to offspring. Answer: reproduction

Ex Output:
All living things are capable of what process whereby living things give rise to offspring?

Ex Input:
Passage: As we studied in our chapter on the periodic table, we saw that elements share a number of important properties with other elements found in the same group. The chemical behavior of a given element is largely dictated by the configuration of its valence electrons. Many elements have a tendency to gain or lose electrons in order to achieve a more stable configuration. When a neutral atom gains or loses electrons, it becomes an ion. In this lesson, we will look at ways to predict what type of ion a given element is likely to form. Answer: it becomes an ion

Ex Output:
What happens when a neutral atom gains or loses electrons?

Ex Input:
Passage: Lab experiments are the main method of gathering evidence in some branches of science. Why might lab experiments not be the best way to study living things, such as wild animals?. Answer: lab experiments

Ex Output:
How is most evidence gathered in science?