Extraterrestrial Life Exam 1 Practice 2026 - Free Exam Practice Questions and Study Guide

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Which planets have moons for which subsurface liquids may exist, as mentioned in the material?

Jupiter, Saturn, and Uranus

Earth and Mars

Jupiter, Saturn, and Neptune

Moons can harbor liquid water beneath thick ice when tidal forces from their giant planet and internal heat keep the interior warm enough to avoid freezing. The material highlights moons of Jupiter, Saturn, and Neptune as candidates for subsurface liquids. Classic examples include Europa or other Jovian moons, Enceladus and Titan among Saturn’s, and Triton around Neptune. Uranus’s moons aren’t cited as having such subsurface oceans in the material, so the set that fits is Jupiter, Saturn, and Neptune.

Neptune and Uranus