In order to create a modal of the universe, a student needs to include certain components.

d

Explanation:

Explanation:

In reality, the Universe consists of mostly empty space and dark matters and dark energies. So it will not be a good show if a model is built of that. For a model in class, the student should build it with components that can actually be seen, like galaxies, suns, planets and moons. Most of them are round in shape and can be represented by balls of different sizes.