Based from the excerpt, it can be inferred that the mood of the story delves into the realization that '<span>The children didn’t realize just how poverty-stricken their families were.</span>' As mentioned, they had no reference (such as radios, TV, or newspapers) in order to fully grasp their current situation.
Answer:
Depending on the passage, it means to find fault with someone, or to scold.
Use the evolution of the very first phone then just elaborate on the progression of apps and miscellaneous things we have on our phone