I like how they showed the reactions of the rest of the world in this chapter. It really drives in that this is the Earth itself, not just some girl that effects the environment in her immediate vicinity.
Also, I wonder if we're gonna get a Moon Girl at some point? Or a Mars Girl? Because I feel like this'll get to a point where it needs more "strange" characters soon. At this rate, every chapter will just be "Terra-chan does something, something happens to the Earth too!" so it needs something to shake it up.