What would Jupiter have needed to have become a star?
A) more moons
B) more mass
C) a slower rotation, like the Sun
D) a different chemical composition
E) a higher density
Question 2
What is differentiation in planetary geology?
A) the process by which gravity separates materials according to density
B) the process by which different types of minerals form a conglomerate rock
C) any process by which a planet's surface evolves differently from another planet's surface
D) any process by which one part of a planet's surface evolves differently from another part of the same planet's surface
E) any process by which a planet evolves differently from its moons