Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
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Question: How do cicada predator populations grow I mean how much larger would they be if cicada outbreaks occurred at 14 and 15 year intervals?

Answer: How much larger would cicada predator populations be if cicada outbreaks occurred at 14 and 15 year intervals?


Question: What or no make that whose principles were the principle of faunal succession built upon?

Answer: Whose principles were the principle of faunal succession built upon?


Question: What are or rather how are the certain costs which are difficult to avoid shared?

Answer:
How are the certain costs which are difficult to avoid shared?