Glaciers are a powerful force of nature that have carved the topography of much of the earth's surface.
(Glaciers; are; a powerful force of nature that have carved the topography of much of the earth's surface) (a powerful force of nature; have carved; the topography of much of the earth's surface)
Glaciers a powerful force of nature
are have carved
a powerful force of nature that have carved the topography of much of the earth's surface
the topography of much of the earth's surface