Final answer:
An egg makes the best comparison to Earth due to the similar layered structure, but differences remain such as the Earth's dynamic nature and life presence.
Step-by-step explanation:
When comparing Earth to the given objects -- an egg, a freshly baked apple pie, and a frozen lake -- an egg is often the best comparison.
Like Earth, an egg has different layers: the shell, the white, and the yolk, which are analogous to Earth's crust, mantle, and core.
However, unlike an eggshell, Earth's crust is not uniformly solid around the entire planet; it has tectonic plates that move and shift.
The white of the egg, similar to Earth's mantle, is more liquid and less dense than the yolk or core, although the physical states of these layers differ significantly: the mantle is solid rock, but it behaves as a viscous fluid over long periods.
The yolk stands in for the core, representing the dense, innermost layer of the planet. Earth and the egg also differ in that the egg is lifeless and static, while Earth is dynamic and teeming with life.