ASTRONAUTS=is person that train walking in the space
yes
They need to take it with them. There is no oxygen in space
If the space station is pressurized, I don't think astronauts need to where space suits.
No, astronauts actually don't do laundry in space. They have to throw away there clothes after they get dirty, because their is no way to wash them.
The reason it is so cold in space and astronauts need warm clothing is because thair is NO element in space for warm energy conduction, an element is any natral mass.
food, water, shelter
No, because most astronauts just make it into space but don't walk on the moon and their still considered astronauts.
Astronauts wear spacesuits due to the absence of pressure in space. They need to maintain the pressure level on Earth by isolating themselves from actual space. For the helmets: there is no oxygen in space. Humans require oxygen to live, inhaling it through their nose and mouth. Therefore if they do not wear helmets, they will die instantly from loss of oxygen.
You need space food to give nutrition to astronauts. They need energy to perform tasks thus need food.
their suits are very heavy.
trained space astronauts