Question

12.15-test prep-water cycle
which of the following describes hydrosphere?
○ most of it contains salt
○ it is made of only freshwater
○ all of it is located above ground
○ it is formed by climate change

Explanation:

The hydrosphere includes all water on Earth. Most of Earth's water (about 97%) is saltwater in oceans, so "most of it contains salt" is correct. The hydrosphere has both fresh and salt water, so "it is made of only freshwater" is wrong. Water is also underground, so "all of it is located above ground" is wrong. The hydrosphere is part of Earth's systems, not formed by climate change, so that option is wrong.

Answer:

A. most of it contains salt