What is the main reason that the Earth has a hydrosphere dominated by liquid water?
A) heat stored in the crust from early in the formation of the Earth
B) internal heating from magnetism
C) solar heating from the Sun
D) internal heating from radioactivity

Question

Quizplus · Accepted Answer

The main reason for the Earth having a hydrosphere dominated by liquid water is solar heating from the Sun. The Sun's energy warms the surface of the Earth and allows water to exist in its liquid form. The other choices, such as heat stored in the crust, internal heating from magnetism, and internal heating from radioactivity, do affect the Earth's temperature and geology, but are not the main reason for the presence of liquid water in the hydrosphere.

What Is the Main Reason That the Earth Has a Hydrosphere