In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: Biodiversity helps ensure that, at least, some species will survive environmental change. Question: What helps ensure that, at least, some species will survive environmental change?

A: biodiversity
****
Q: Sentence: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of simple harmonic oscillator. Question: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of what device?

A: simple harmonic oscillator
****
Q: Sentence: The separation of compounds on the basis of their solubilities in a given solvent is known as fractional crystallization. Question: The separation of compounds on the basis of their solubilities in a given solvent is known as what?

A:
fractional crystallization
****