instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Virtually all aquatic organisms depend directly or indirectly on protists for food.
answer:
Virtually all aquatic organisms depend directly or indirectly on what for food?


question:
Articular processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head.
answer:
What processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head?


question:
Popping popcorn action will result in a product with new chemical properties.
answer:
Which action will result in a product with new chemical properties?