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.

Sentence: The potential of galvanic cell can be used to measure the ph of a solution. Question: The potential of what can be used to measure the ph of a solution?
galvanic cell

Sentence: Plate movements causes continents to drift closer to the poles or the equator. Question: What causes continents to drift closer to the poles or the equator?
plate movements

Sentence: The sun delivers power to the chemical factory chloroplasts. Question: What delivers power to the chemical factory chloroplasts?

the sun