Final answer:
Salva's survival in 'A Long Walk to Water' is aided by luck when he discovers food and water, escapes danger, and receives help at crucial times.
Step-by-step explanation:
In A Long Walk to Water, Salva's journey is marked by moments of extreme hardship, but also serendipity that aids his survival. Luck plays a role several times, such as when Salva discovers unexpected food or water sources, or when outside help arrives when all seems lost. The narrative illustrates Salva's reliance on chance through scenes where he encounters helpful individuals or narrowly escapes danger. These moments of fortune are pivotal in ensuring Salva's continued survival amidst the trials of his journey.