Question

Considering that carbon dioxide is a colorless and odorless gas... wouldn't its make sense for its solid form to be a darker looking frozen piece of snow? I mean it comes mostly from when we exhale oxygen and that air is dirty because it cycled throughout our respiratory system... so would CO
2 actually be a light brown?

Answer 1

no

Answer 2

No...

Answer 3

no

Answer 4

Yes, carbon dioxide is a colorless, odorless gas.
But, when at a low enough temperature and put under enough pressure, carbon dioxide forms a solid. This solid is dry ice. Dry ice is a white solid. So, no. Solid form of carbon dioxide is not brown.