Question

is the group of words in bold a phrase or a clause? although glaciers occupy only about ten percent of the earths land surface, they contain about seventy - five percent of its fresh water. phrase clause

Explanation:

A clause has a subject and a predicate (a verb and what it relates to). The bolded group "they contain about seventy - five percent of its fresh water" has the subject "they" and the predicate "contain about seventy - five percent of its fresh water" (with the verb "contain" and its related content). A phrase lacks a subject - predicate structure. So it's a clause.

Answer:

clause