Author Question: The infall of material in the Galactic halo to the Galactic disk stopped shortly after the formation ... (Read 143 times)

moongchi · **on:** Jul 27, 2018

The infall of material in the Galactic halo to the Galactic disk stopped shortly after the formation of globular clusters.

Indicate whether the statement is true or false

Question 2

Over time, the star-gas-star cycle leads the gas in the Milky Way to

A) have a greater abundance of heavy elements.
B) have a lower abundance of heavy elements.
C) become denser and have a greater abundance of heavy elements.
D) become denser and hotter.