According to the Theory of Plate Tectonics

question 21

Multiple Choice

According to the theory of plate tectonics,

• A) the continents are moving but the ocean floor is not, leading to great friction
• B) the rubbing of the waters of the Earth across its crust is speeding up its rotation
• C) the liquid metal inside the Earth is developing plates of solid metallic material, which contribute to the Earth's magnetic field
• D) earthquakes are caused by huge waves that come up from inside the molten core of the Earth
• E) slow motions within the mantle of the Earth move large sections of the crust around

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