Europa

What are the three essential elements for life in Europa?
Water, energy and gravitational pull
Water, Sulfur and chemical elements
Chemical elements, water and energy
Energy, chemical elements and ice
How does the ocean beneath Europa's ice surface remain liquid?
Heat from the sun
Gravitational pull of Jupiter creating enough heat
The ice surface of Europa trapping heat from the core
None of the above
Who discovered Europa?
Galileo Galilei
Simon Marius
Isaac Newton
None of the above
What is Europa's core made of?
Silicate rock
Iron and Nickel
Iron and Copper
Nickel and Silver
How large is Europa compared to Earth?
Similar size
Larger
Smaller
How is Sulfur converted into chemical energy?
Gravity
Charged particles
Heat
None of the above
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