TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: The ability of matter to combine chemically with other substances is known as reactivity.

SOLUTION: The ability of matter to combine chemically with other substances is known as?

PROBLEM: Seed -> young plant -> adult plant sequence shows the order of stages in a plant’s life cycle.

SOLUTION: Which sequence shows the order of stages in a plant’s life cycle?

PROBLEM: The creation and destruction of oceanic crust is the reason continents move.

SOLUTION:
The creation and destruction of oceanic crust is the reason what moves?