Answer:
Hydrosphere
Explanation:
The wording is quite confusing but if you are talking about the 'spheres' of earth's bio-systems, then the answer should be: The part of Earth that is liquid water is called the <em>Hydrosphere</em>
"The ciliary body is a circular structure that is an extension of the iris, the colored part of the eye."
C.)
to sign the constitution of its treaty
a
because
