I would say that they are placed into families.
Answer:
i only know 1 and 2
Explanation:
1. How does the density and distribution of your “stars” change as the balloon expands?
When the balloon expands the density of all the stars increase letting the distribution grow
2. How does your expanding balloon model represent an expanding universe?
When the balloon expands it stretches out and expands and gets bigger just like the universe does it expands and get bigger
Your answer is B.
Hope this helped
Russia, Kazakhstan, Turkmenistan, Iran and Azerbaijan all border the Caspian Sea.
For the first eleven years of its existence, the United States
implemented a "B. Confederation" style government, since during this
time most of the power was reserved by the individual states--not the
central government.