Final answer:
The answer to the question about a vent that does not carry water or waste is 'dry'. A dry vent carries only air and gases to prevent sewer gases from entering the building.
Step-by-step explanation:
The correct answer to the question "A __________ that is a vent that does not carry water or waterborne waste" is a: dry. In the context of plumbing and building construction, a dry vent only carries air and gases from the plumbing system. It prevents sewer gases from entering the building and helps maintain the water trap's seal in a fixture's drain. Unlike wet vents, which can carry both air and waterborne waste, dry vents do not convey any water or liquid waste. It's important to understand the distinction between these types of vents when dealing with plumbing systems to ensure proper function and adhere to building codes.