What is one key difference between the environments on Earth and the subsurface oceans of Europa and Enceladus?

Answer

Life on the moons would likely be sustained by internal energy sources rather than direct stellar energy.

The icy moons rely on internal heat sources like tidal flexing for energy, supporting life beneath ice shells, unlike Earth's surface life which primarily relies on the Sun.

What is one key difference between the environments on Earth and the subsurface oceans of Europa and Enceladus?

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