The lithosphere includes
a) a blanket of air that surrounds earth's surface.
b) all of earth's water.
c) all plants, animals, and people.
d) the rocks, minerals, and solid inorganic parts of earth.

D) The rocks, minerals, and solid inorganic parts of Earth.

The sun's parallax would be 180 degrees, greater than which you can't get.  so a. would be your anwser 

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].