The Process of Accretion in Planetary Formation Is The

question 99

Multiple Choice

The process of accretion in planetary formation is the:

• A) slow condensation by gravity of gas atoms into large, dense gas clouds that are the preplanetary masses.
• B) slow acquisition from deep space by the giant planets of their complement of moons by gravitational capture.
• C) slow accumulation of solid particles by gravity and collision into larger, solid objects.
• D) relatively rapid gravitational collapse (in less than 10⁶ years) of gas clouds to form planets.

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