Respuesta :
Answer:
to introduce the idea that even most reliable of geysers can be inconsistent
Explanation:
Did da iready ;D
The author makes a section about the Yellowstone and gives information regarding the geysers and how one can preserve them. They explain the geysers are eruptions at a lower surface.
- Hence gives us the indication and information about the events of how the earth was formed and how the surface erupts.
- Hence the correct option is A.
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