Question

Which idea best describes why the volume of water in Earth's oceans changes?

A)Inside of volcanoes 

B)Inside the atmosphere

C)Bonded to meteorites that hit the Earth 

D)Bonded to minerals in Earth's mantle

Answer 1

B)Inside the atmosphere

Answer 2

The correct option is B.
The volume of water in the ocean changes as the result of constant changes in the water cycle of the earth. The changes in the water cycle is brought about by the evaporation and the condensation of water which happen continuously on the earth and which drive the water cycle.