lol ok

by trying to bring air back, and the only solution for that is to have

t r e e s
um

try to make a tree garden in the base to protect the air from dust & toxic air

the trees need air to be able to breathe,

soo we need advanced ventilation in the base

that will be very challenging tho, the dust is very fine and may get through the vents

uh
more questions?

it's to try to attain what the human race wants,
being a interstellar species (which means that you wanna conquer planets out of the solar system)

the air is, as i said CO² and CH² (carbon dioxide and methane)

soo combining with the deadly toxic elements, the rain would make acid rain

that's a problem for us

and yes
i think i have answered most of ur questions

neptune is just a gaz-type planet

its like jupiter, it's hella cold in there

you can't even set a foot in there

i wonder why it is soo big but the densest big planet in the solar system

Mars is a very hard place to live on,,,
Air is just CO² And some more toxic elements (also CH⁴?)
its just
no

there's also duststorms that will yeet you