Protoplanets of the Jovian Planets Could Have Grown Very Hot

question 55

Multiple Choice

Protoplanets of the Jovian planets could have grown very hot from

• A)heat from the Sun.
• B)radioactivity of light elements such as hydrogen and helium.
• C)the infall of material at high velocity.
• D)tidal forces due to the Sun.
• E)collisions with large planetesimals.

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