What is the main cause of earthquakes ? – McqOptions

MCQOPTIONS

1.	What is the main cause of earthquakes ?
A.	Sudden cooling and contraction of the earth surface
B.	Coming into activity of some dormant volcanoes
C.	All of the above
D.	Due to internal heat, sometimes water changes into steam and expands
Answer» D. Due to internal heat, sometimes water changes into steam and expands

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