select the correct answer. what is the name of earths innermost layer? a. core b. crust c. geosphere d. mantle

Brief Explanations:

The Earth has three main layers: crust, mantle, and core. The core is the innermost layer. The crust is the outermost, the mantle is in - between, and the geosphere is a more general term for the solid parts of the Earth.

Answer:

A. core