Please help! 30 points & I will give Brainliest. ASAP The diagram below shows the layers in Earth's interior.

Diagram shows the internal layers of Earth. The layer surrounding the central region is labeled A and the layer inside Earth just after the outermost layer is labeled B.

Which of these statements best describes a difference between the two layers? (2 points)

Group of answer choices

Layer A is gaseous and Layer B is mainly solid.

Layer B is gaseous and Layer A is mainly solid.

Layer B is liquid but Layer A is solid.

Layer A is liquid but Layer B is solid.

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].

Since wxyz is 4, halfof that would be 2.