Final answer:
In paragraphs 28-30, Stella's arrival at AgroGlobal headquarters builds suspense through descriptive language, tension, and an uncertain outcome.
Step-by-step explanation:
In paragraphs 28-30, Stella's arrival at AgroGlobal headquarters builds suspense through the use of descriptive language, heightened tension, and an uncertain outcome. The author creates suspense by describing the atmosphere as tense and foreboding, using words like 'ominous' and 'nervous.' Additionally, the author hints at a potential conflict or confrontation by mentioning the guarded entrance and the security personnel. This builds anticipation and leaves the reader wondering what will happen next.