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New TOEFL IBT Pratice Test #002
New TOEFL IBT Pratice Test #002
Listening | Question 14 of 16
Listen to an Academic Talk
According to the professor, what prevents the superheated water from boiling initially?
A) The lack of oxygen underground
B) The depth of the water source
C) The pressure from the water above it
D) The specific mineral content of the rocks