BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 23
The process that continually adds new crust is:
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (C) seafloor spreading
ವಿವರಣೆ
At divergent mid-ocean ridges, seafloor spreading continuously creates new crust (Harry Hess).
- (A) ತಪ್ಪು
Wrong: subduction destroys crust.
- (B) ತಪ್ಪು
Wrong: earthquakes do not create crust.
- (C) ಸರಿ
Correct: magma rising at mid-ocean ridges forms new oceanic crust.
- (D) ತಪ್ಪು
Wrong: convection drives plates but does not itself add crust.