I) The earth has three compositional layers - crust, mantle and
core. The mantle is divided into three sublayers - the uppermost rigid part of the
mantle, the asthenosphere and the mesosphere. In a similar manner, the core is
subdivided into the liquid outer core and the solid inner core.
A. Continental drift theory
B. Seafloor spreading theory
C. Plate tectonics theory
D. Convection current
E. Internal structure of the Earth
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Answer:
E.
Explanation:
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