Question

what does it mean when ocean floor subducts?
□ it rises to the surface of a mountain
□ it’s movement is slowing
□ it sinks underneath another plate
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Explanation:

To determine the correct answer, we analyze the concept of subduction in plate tectonics. Subduction refers to the process where one tectonic plate (such as an oceanic plate) sinks beneath another plate (usually a continental plate) due to differences in density.

• The first option, "It rises to the surface of a mountain," is incorrect because subduction involves sinking, not rising to form mountains (mountain formation from subduction is due to the overriding plate's deformation, not the subducting plate rising).
• The second option, "It’s movement is slowing," is incorrect as subduction is about the direction of movement (sinking) rather than the speed of movement.
• The third option, "It sinks underneath another plate," correctly describes the subduction process where the ocean floor (oceanic plate) subducts (sinks) beneath another tectonic plate.

Answer:

The correct option is:

• It sinks underneath another plate (the third option, with the checkbox next to "It sinks underneath another plate").