Question

the witch of the west built her cottage near a mid - ocean ridge. what happens there? plates collide and form mountains plates move apart and magma rises plates stand perfectly still one plate slides under another

Explanation:

Mid - ocean ridges are formed at divergent plate boundaries. At these boundaries, tectonic plates move apart. As the plates move apart, the pressure on the underlying mantle decreases, causing magma to rise from the mantle to fill the gap between the separating plates. Plates colliding to form mountains occurs at convergent boundaries (like continental - continental convergence), plates standing still is not a feature of plate tectonics, and one plate sliding under another is subduction, which happens at convergent boundaries (oceanic - continental or oceanic - oceanic). So the correct description of what happens at a mid - ocean ridge is that plates move apart and magma rises.

Answer:

B. Plates move apart and magma rises (assuming the blue option is labeled B, if the original labels were different, adjust the label according to the actual option numbering. But based on the content, the correct option is the one stating "Plates move apart and magma rises")