Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: A change of season and less food usually cause certain animals to migrate.

Output: Which two environmental changes usually cause certain animals to migrate?


Input: Consider Input: The amniotic egg first evolved in reptiles.

Output: The amniotic egg first evolved in what species?


Input: Consider Input: Hydrogen type of ions play critical roles in light-dependent reactions.


Output: What type of ions play critical roles in light-dependent reactions?