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

[Q]: Passage: Condensation reactions are the chemical processes by which large organic compounds are synthesized from their monomeric units. Hydrolysis reactions are the reverse process. During condensation reactions, water is produced from the two molecules being bonded together; an H from one monomer is joined to an -OH from another molecule, producing H 2 O. Answer: water
[A]: What is produced during a condensation reaction?

[Q]: Passage: There are multiple ways to prevent these situations from occurring. The three most common protective devices are fuses, circuit breakers, and surge protectors. Answer: fuses, circuit breaks & surge protectors
[A]: What are the three most common protective devices?

[Q]: Passage: The pupil is an opening in the front of the eye. It looks black because it doesn't reflect any light. All the light passes through it instead. The pupil controls the amount of light that enters the eye. It automatically gets bigger or smaller to let more or less light in as needed. Answer: pupil
[A]:
What is the opening in the front of the eye called?