What evidence is there for scientists to believe Uranus has some internal heat?
A) active volcanoes spewing methane gas and ash
B) convection in the fluid mantle driving the dynamo effect
C) a molten metallic core
D) craters on the surface that are small and filled by lava
E) a severe axis tilt leads to more absorption of heat from the Sun

Question

Quizplus · Accepted Answer

Convection in the fluid mantle of Uranus suggests internal heat sources that drive this movement, indicating the planet generates some of its own heat internally, separate from solar heating.

What Evidence Is There for Scientists to Believe Uranus Has