Question

Carla uses a table tennis ball and a volleyball to represent two astronomical bodies based on their sizes. Which of the following representations is the most correct based on what Carla has?

A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.
B: The table tennis ball represents the solar system and the volleyball represents Earth.
C: The table tennis ball represents the solar system and the volleyball represents the moon.
D: The table tennis ball represents the Milky Way and the volleyball represents the solar system.

Answer 1

A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.

Answer 2

A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.

Step-by-step explanation:

The universe is huge. It contains millions of billions stars in total of about 10 billion galaxies. These galaxies are grouped into clusters. Milky way is our home galaxy which is part of local group cluster. There are main three galaxies in local group cluster- Milky way, Andromeda and Triangulum. Other than these large galaxies there are dwarf galaxies part of the cluster.

Thus, a table tennis ball which is smaller in size would represent milky way and volley ball would represent local group cluster.