Answer the following question given this paragraph: Because the Sun is not solid, it does not have a defined outer boundary. It does, however, have a definite internal structure with identifiable layers ( Figure below ). Since the layers are not solid, the boundaries are fuzzy and indistinct. From inward to outward, the layers are: the core, the radiative zone, and the convection zone. Q: What is the innermost layer of the sun called? Choices: - Convection Zone - Chromosphere - Photosphere - the core A:
A:
the core