What are the three main parts of the geosphere?

a. atmosphere, crust, core

b. lithosphere, mantle, core

c. crust, mantle, core

d. asthenosphere, lithosphere, atmosphere

The answer is C. Crust mantle and core, 

D is all other atmospheres

B has one other sphere that is hundreds of miles above the geosphere and A. is wrong because the Geosphere is ONE OF the atmospheres 

Hi ur litt it's pretty cool that i get points for just rambdomly answering stuff

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].