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Please Help! Don't remember going over this! What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated liquids at the earth’s surface C. iron-rich rocks in the mantle D. temperature differences in the mantle



Answer :

It's the temperature differences in the mantle. Warmer magma near the core rises because it becomes less dense. It reaches the surface, pushes against the tectonic plates, then cools and falls back down to be replaced by new warm magma. This process repeats indefinitely

The correct answer is D. temperature difference in the mantle I am an Online Middle Schooler and I got it right