Which passage type is specifically written to describe a complex object or process?

The passage type specifically written to describe a complex object or process is technical writing. This form of writing is characterized by its focus on detailed and precise descriptions of mechanisms, systems, and processes, often using specialized language to convey information about complex subjects. Technical writing aims to inform or instruct the reader, making it essential in fields such as engineering, science, and technology.

Technical passages often include diagrams, charts, and other visual aids to further clarify the details being discussed. They are structured to enhance understanding, usually providing step-by-step processes, detailed descriptions, and functional specifications that readers might need to comprehend and effectively use the complex object or process in question. This focus on clarity and utility distinguishes technical writing from various other forms of communication.