Need on these 3. are they elliptical, irregular, or spiral galaxy.

5. least common type of galaxy

9. main features of the universe

10. has a nucleus made up of bright stars

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Achange in direction without a change in speed is called velocity

Describe surface tension in a group of bonded water molecules