Given a scientific passage and an answer, generate a question for the given answer.

Ex Input:
Passage: When two plates of continental crust collide, the material pushes upward. This forms a high mountain range. The remnants of subducted oceanic crust remain beneath the continental convergence zone. Answer: high mountain range

Ex Output:
When two plates of continental crust collide, the material pushes upward and forms what?

Ex Input:
Passage: Whales and bats have the trait of echolocation. This is the ability to locate objects in the dark by bouncing sound waves off them. The most recent common ancestor of whales and bats did not have this trait. Apply lesson concepts to explain how the trait evolved in whales and bats. Answer: echolocation

Ex Output:
What term is defined as the ability to locate objects in the dark by bouncing sound waves off them.

Ex Input:
Passage: Like acetic acid, pentanoic acid is a carboxylic acid. Unlike acetic acid, however, the alkyl group is rather large, consisting of a 4-carbon chain as in butanol. As with butanol, the nonpolar character of the alkyl group is likely to be as important as the polar character of the carboxylic acid group, making it unlikely that pentanoic. Answer: carboxylic

Ex Output:
Like acetic acid, pentanoic acid is what kind of acid?