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What would be a simple exam answer for Convectional Current Theory?

Answer and explanation

Correct answer: Heat in the mantle creates currents that can affect plates

Direct answer: Option A is correct. Convectional Current Theory says that heat inside the mantle can produce slow circulating movements, or convection currents. Hot material tends to rise, while cooler material tends to sink. This movement may influence the plates above it and is used to explain part of plate movement. Option A gives both the cause, heat in the mantle, and the possible effect, influence on plates. Option B is wrong because rivers may erode land but do not create mantle convection. Option C is wrong because ordinary winds do not move continents every day. Option D is wrong because crops cannot form the ocean floor. Memory cue: mantle heat causes currents; currents can affect plates.

Related tags

Convection TheoryExam AnswerMantle Heat

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