food aka rocks and bodies
water and lets see what do u think?
to live on Mars you would need Oxogen, water, food, and lots of sun tanning lotion because Mars is very hot!
oxogen
it is possible to live on Mars but to do this you would need an atmosphere, and to have an atmosphere you need gases. To make these gases (there have been discussions about this) you would need to build factories to give off green house gases and make an atmosphere, because Mars is extremely cold at night, then we would have to get people to Mars. This would cost billions and would take a long time to build the atmosphere.
An alien would need to have adapted to Mars' inhospitable conditions, including its thin atmosphere, extreme cold temperatures, and lack of liquid water. This could involve advanced technology for life support, protection from radiation, and means of obtaining nutrients and energy. Additionally, the alien's biology would likely need to be very different from life on Earth to withstand the harsh Martian environment.
I think they would breathe with carbon dioxide and would live on mars.
we need to go to mars because when there is to many people on earth we can live in mars as well
An alien would presumably not need to breath oxygen as if they have some kind of ESP, they don't even exist. Edit- i doubt they do exist too but if they did, there's no reason to believe that they would have some special ability like ESP. I wasnt talking about some super alien race, just a creature who can survive and all creatures on earth need oxygen, water, and some form of food. there are trace amounts of oxygen on mars (in the form of iron oxides, unusable by us but might possibly be used by them) but the other two are still missing for an alien to grow and develop unless their chemical compound is that different
oxygen
Unless you live in a space housing environment specially created for human live on Mars, you would need a space suit to live on Mars, just as you would on the Moon. Mars has very little atmosphere, the temperatures are usually very cold. There is a good possibility of being hit by solar radiation. Mars has no life on it that we know of, and a human being would probably die, if they tried to live there without protection from a well designed, enclosed building, or a space suit.
It would need what any animal needs to survive: Food, Water, and Air. They breath the air so that's no problem. There's ice on Mars so they could melt they ice for water (Don't know how they would MELT they ice...). The only problem would be food.
Can a legal alien live in USA without a passport.
Not really. Its too cold to live on Mars and there is not enough oxygen. Humans would need to bring breathing aparatus, heating, a pressure suit and food to survive there.