Which one of the following gases are released from the ground, minutes or hours before an earthquake is about to strike?
A) Xenon
B) Argon
C) Helium
D) Radon
Answers
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4
I think it's Helium
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0
The gases are released from the ground, minute or hours before an earthquake is a radon so option (D) is the correct option.
- In the previous decade, various researchers have assumed that high concentrations of radon gas in soil or groundwater could be an indication of a coming earthquake. It is understood that radon is discharged from compartments and cracks as the Earth's crust is drained before the immediate slip of an earthquake.
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