Th answer you are looking for is physical weathering
It is the letter d the peropen was right with it
<h2>Palmer Peninsula
</h2>
Antarctic Peninsula, also called Palmer Peninsula, Graham Land, or Tierra de O'Higgins, peninsula claimed by the United Kingdom, Chile, and Argentina. It forms an 800-mile (1,300-km) northward extension of Antarctica toward the southern tip of South America.
It is tilted closest to the summer solstice and farthest in the winter solstice.