gap vs Earth's surface

gap and Earth's surface both are nouns.

Word	Noun	Adjective	Verb	Adverb
gap	Yes	No	Yes	No
Earth's surface	Yes	No	No	No

gap (noun)	Earth's surface (noun)
an act of delaying or interrupting the continuity	the outermost level of the land or sea
a narrow opening
a conspicuous disparity or difference as between two figures
a difference (especially an unfortunate difference) between two opinions or two views or two situations
an open or empty space in or between things
a pass between mountain peaks; geomorphological term for the lowest point on a mountain ridge between two peaks

gap (verb)	Earth's surface (verb)
make an opening or gap in