"slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere, causing

hot spots.
rift valleys.
ocean trenches.
mid-ocean ridges.

Basically it would be mid-ocean ridges.

Ocean trenches

Explanation:

"Slab pull" is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere, causing ocean trenches.

Ocean trenches are steep depressions of the ocean floor which are formed by subduction of the lithosphere that occurs due to the motion of tectonic plates by a force known as slab pull. In the process of subduction, two or more tectonic plates are converged, and the older plate which has the larger weight is pushed under another plate, causing the sea floor to bend to form a steep, v-shaped depression known as ocean trenches. This process result in earthquakes, formation of volcanoes on land and on the ocean floor, and raising of mountains.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex