hydrosphere vs earth

hydrosphere and earth both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrosphere	Yes	No	No	No
earth	Yes	No	Yes	No

hydrosphere (noun)	earth (noun)
the watery layer of the earth's surface; includes water vapor	a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage)
	the concerns of this life as distinguished from heaven and the afterlife
	the abode of mortals (as contrasted with Heaven or Hell)
	the solid part of the earth's surface
	the 3rd planet from the sun; the planet we live on
	the loose soft material that makes up a large part of the land surface
	once thought to be one of four elements composing the universe (Empedocles), associated with the humour black bile

hydrosphere (verb)	earth (verb)
	connect to the earth
	hide in the earth like a hunted animal