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In what form is material movement shown in Convectional Current Theory?

Answer and explanation

Correct answer: As a cyclic current

In a convection model, material does not simply travel once in a straight line and then stop. Heating makes part of the material rise, while cooling makes another part sink. These opposite movements continue and connect with one another, producing a repeated circulation or cycle. A diagram commonly shows this as arrows moving upward on one side and downward on the other.

Therefore, option A is correct: material movement is shown as a cyclic current. The word cyclic expresses the repeated loop of rising, spreading or moving sideways, cooling, and sinking. “Completely closed” is not a clear description of the movement, and a straight line or a fixed state would contradict the basic idea of convection. The cycle is the important feature represented in the theory.

Related tags

Cyclic CurrentMaterial MovementConvection

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