your answer is the third one.
Usually representing a solid you used a 3d model.
And there are balls in them representing atoms and in a video it shakes or vibrates to represent the motions of a solid.
Answer:
Explanation:
Others thing they share is that, both animals lay reproduce by laying of eggs.
It should be understood that, both reptiles and aves reproduce by laying of eggs, and that's another trait that they have in common.
Another one is that, there are some of the birds that are carnivorous in nature, just like the crocodile.
