Not at all. Density on its own is not sufficient
Answer:
Star formation occurs most rapidly in the spiral arms, where the density of interstellar matter is highest.
Answer:
Explanation:
The first method to engage is to listen to where the sound of air in the inner Tor escaping originated and look to see if u can find it. You can then feel the escape air with your hand.
You can Put it inside a container of water and see the bubble and rotate the inner tube to pass all of it through the water