The process that continually adds new crust is:

उत्तर: (C) seafloor spreading

• (A) चूक

  Wrong: subduction destroys crust.

• (B) चूक

  Wrong: earthquakes do not create crust.

• (C) बरोबर

  Correct: magma rising at mid-ocean ridges forms new oceanic crust.

• (D) चूक

  Wrong: convection drives plates but does not itself add crust.