Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Constructive forces type of forces are involved when deposited rock forms deltas or barrier islands.

Answer: What type of forces are involved when deposited rock forms deltas or barrier islands?

Question: Evolution occurs by natural selection, a process whereby better-adapted members pass along their traits, according to darwin.

Answer: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin?

Question: In plants, a high concentration of iaa inhibits cell elongation.

Answer:
In plants, a high concentration of iaa inhibits what?