which of earths spheres contains most of is mass ?
a) atmosphere
b) hydrosphere
c) geosphere
d) biosphere
5 answers
https://www.jiskha.com/questions/1781182/Which-of-Earths-spheres-contains-most-of-its-mass-A-atmosphere-B-hydrosphere
I'm pretty sure its a hydrosphere.
The geosphere because its the rock element of earth
any body have the answers
i'll try to post them :D