instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
The term elastic potential energy is used to describe potential energy due to an object’s shape.
answer:
What term is used to describe potential energy due to an object’s shape?


question:
Pangaea began breaking apart 250 million years ago.
answer:
How many millions of years ago did pangaea begin breaking apart?


question:
The word alkali comes from the arabic al-qili, meaning “ashes of the saltwort plant from salt marshes”.
answer:

What word do get from the arabic al-qili, meaning “ashes of the saltwort plant from salt marshes”?