Final answer:
The excerpt from 'The Girl Who Silenced the World' that embodies the idea of Earth as a wonderful place is the one focusing on universal family beyond borders.
Step-by-step explanation:
The excerpt from 'The Girl Who Silenced the World' that evokes a sense of 'what a wonderful place this Earth would be' is 'I'm only a child, yet I know we are all part of a family – borders and governments will never change that'. This particular passage highlights the concept of unity and the intrinsic familial bond that transcends all artificial divisions, suggesting an idealistic vision of the earth and humanity as one people. While the other excerpts may touch upon different aspects of the human experience or critique societal issues, none of them conveys the message that the Earth in itself would be a wonderful place in the way that this phrase does.