Compared to the total energy available to support life on Earth, the total energy available to support life in a Europan ocean would be

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Quizplus · Accepted Answer

The total energy available to support life in a Europan ocean would be much smaller compared to the total energy available to support life on Earth. This is because Europa receives very little sunlight, which is a primary source of energy for life on Earth. Instead, life on Europa would have to rely on chemical energy sources, such as those produced by volcanic activity and hydrothermal vents. While these can support life, they are much less abundant and predictable than the sunlight that powers life on Earth. Additionally, Europa's ocean is much colder and much less hospitable overall than Earth's biosphere, further limiting the amount of energy available to support life.

Compared to the Total Energy Available to Support Life on Earth