Question

An unlabeled hierarchical diagram of various astronomical bodies is shown. The labels A, B, C and D can be used to represent the galaxy, Mars, universe, moon, and solar system. An image of four circles nestled one within the other is shown. The lower boundary of all four circles touch one another. The largest and the outermost circle is labeled A. The next circle in order is labeled B. The next circle is labeled C. The innermost circle is labeled D.
Part 1: Which four astronomical bodies would you choose to represent the four labels in the diagram?
Part 2: Explain why the hierarchical level D is different from the rest.

Answer 1

Part 1: The four astronomical bodies would you choose to represent the four labels in the diagram are (A universe B galaxy C solar system D Mars) because a universe holds galaxys and galaxys holds solar systems witch holds planets like Mars 

Part 2: The hierarchical level D is different from the rest because D or mars is a planet and unlike all there other astronomical bodies it dose not hold other astronomical bodies with in it.