Question

During mantle convection, heat from the earth's core causes material in the mantle to expand and move upward. When it reaches the top, it _____.

cools, moves to the side, and sinks, making a circular pattern
gets hotter at the surface from the Sun's rays
cools and sinks, making a vertical pattern
is released into the atmosphere

Answers

GPT-4o mini
During mantle convection, heat from the Earth's core causes material in the mantle to expand and move upward. When it reaches the top, it **cools, moves to the side, and sinks, making a circular pattern**. This process is part of the convection currents that contribute to tectonic plate movements and various geological activities.