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Questions and Answers
Which of the following is the deepest mine on Earth?
Which of the following is the deepest mine on Earth?
- One kilometer
- Two and a half kilometers
- Nine kilometers
- Four kilometers (correct)
What is the depth of the deepest hole ever drilled into the Earth?
What is the depth of the deepest hole ever drilled into the Earth?
- 12 kilometers (correct)
- 22 kilometers
- 18 kilometers
- 28 kilometers
Approximately how close is the distance to the center of the Earth from the deepest hole?
Approximately how close is the distance to the center of the Earth from the deepest hole?
- 20 percent
- 2 percent
- 0.2 percent (correct)
- 0.02 percent
How do we know so much about the structure of the Earth despite not being able to explore it fully?
How do we know so much about the structure of the Earth despite not being able to explore it fully?
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What is the main reason for earthquakes occurring?
What is the main reason for earthquakes occurring?
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