The space dirt in air could be a harm to humans in large quantities. In most cases, space dirt is not considered to be harmful.
Well, in space their is no air, so we obviously air is the number on thing humans would need in space.
Because there is no air in space.
air pollution can harm humans by the leathel toxens in it it can also kill animals and create water pollution
? ask someone else (it pollotes the air)
For one, Nuclear power can harm aquatic life, harm humans with enough radiation, destroy drinking water, and harm the air.
because NASA dont want humans to experience the fresh air of space
there is no air in space so humans can't breath there if there was air the space would have been colorful because air reflects light.no one can hear us say anything in space because sound travels through air at a top speed of 340-350 meters per second and there is no air in space.there is no air there is no life.So when astronomers reach space they have to take oxygen masks with them so they can breath. the amount of gases in air: oxygen=21% nitrogen=79% other gases=1%
air pollution car gas loud noises etc
It is filled with air, as prolonged exposure to pure oxygen is harmful to humans.
To trap dirt,and other particles that can cause harm to the lungs.
The astronaut's space helmets allows them to breathe in space! It is connected to an air supply.An astronaut's space suit keeps him from harm from outer space objects!They live in an airtight environment (suit, ship, or station).
Lack of air, radiation, extreme temperatures.