Which of the following is an example of a convergent plate boundary?
a. magma from the asthenosphere moves into the litohsphere
b. a volcano erupts on a small island in the pacific ocean
c. a valley forms between two seafloor plates as they pull apart
d. two continental plates push against each other to form a mountain range

d. two continental plates push against each other to form a mountain range

Explanation:

Converging plate boundaries occur when plates converge, that is, when they collide. The more dense plate dives over the less dense generating an area of intense magmatism. There are three types of convergence:

Convergence of two oceanic plates: When there is a collision between these two, the coldest, dense, ancient and thick plate, dives under the other, carrying part of the sediments accumulated on it. These sediments will fuse together with subduction ocean crust, generating intense volcanic activity, forming volcanic arcs or island arcs. Example: Mariana trenches, islands of Japan, etc.

Convergence of two continental plates: When there is a collision between two continental plates, the densest one dives over the other generating an intense metamorphism, that is, great mountain ranges. Example: Himalayan mountain range.

Convergence of a continental plate and an oceanic plate: When a collision occurs between these two plates, one oceanic and the other continental, it will cause the subduction of the continental plate, producing a continental magmatic arc or an abyssal pit at the edge of the continent. Example: Andes Mountains, Peru-Chile Fossa, respectively.

Accordingly, we can conclude that the letter D is the correct answer to your question.

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