There is a growing realization that space offers inexhaustible energy and material resources and a unique environment, the exploitation of which will have a most profound effect on human civilization.
(space; offers; inexhaustible energy and material resources and a unique environment) (the exploitation of which; will have; a most profound effect on human civilization)
space the exploitation of which
offers will have
inexhaustible energy and material resources and a unique environment
a most profound effect on human civilization