Final answer:
Linda Sue Park develops the characters Nya and Salva by interlinking their stories and focusing on their individual experiences and growth, which reflect the tensions between their African heritage and their disparate yet converging life paths.
Step-by-step explanation:
Linda Sue Park develops the points of view of Nya and Salva by weaving their individual stories and experiences, reflecting the tensions that arise from their unique cultural and personal identities. Salva's journey from a lost boy of Sudan to his life in America, for instance, intertwines with Nya's narrative of fetching water in South Sudan. Park allows the reader to experience their struggles, growth, and resilience through their separate yet thematically connected storylines. She showcases character development by juxtaposing moments of despair with those of triumph, creating a multidimensional perspective on what it means to persevere and find one's identity between two contrasting worlds.