Question

question 3 (multiple choice worth 1 points) tg.01 a group of students are studying the earth’s mantle. they discover that the mantle is constantly moving. which of these most likely causes the movement of the mantle?

• heating up of the mantle by the earth’s core
• heating up of the mantle by the earth’s crust
• rotation of the core material in a cyclic pattern
• movement of the mantle material in a cyclic pattern

Explanation:

To determine the cause of the Earth's mantle movement, we analyze each option:

• The Earth's core (inner and outer) is extremely hot. The heat from the core transfers to the mantle, causing convection currents (hotter, less dense mantle material rises, cooler, denser material sinks), which drives mantle movement.
• The Earth's crust is cooler than the mantle and does not heat the mantle.
• The core's rotation pattern is not the primary cause of mantle movement; it's heat - driven convection.
• The "movement of the mantle material in a cyclic pattern" describes the result (convection currents) rather than the cause.

So the heating from the Earth's core is the main cause.

Answer:

A. heating up of the mantle by the Earth's core