Earths atmosphere dose have oxygen in it, without it we would all be dead we require oxygen to breathe.
Without an atmosphere, Earth would be a barren and inhospitable place. The atmosphere provides several vital functions such as filtering harmful solar radiation, regulating temperature, and providing the necessary gases for plants and animals to survive. Additionally, the absence of an atmosphere would mean no air pressure, making it impossible for liquid water to exist on the surface.
We would have to all wear spacesuits. This is because the atmosphere is the border between our oxygen(air) and space. It could be possible though. :)
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
c water vapor
without the atmosphere the will stay on earth and without air there is no sound
Sound can travel through water, metal, rock and air, so the atmosphere isn't strictly needed for sound transmission.
Sound would travel in the moon's atmosphere if the moon had any atmosphere, but since it hasn't, it doesn't.
the atmosphere is important because without the atmosphere the oxygen would escape from our atmosphere into space and without the atmosphere we would all dye because there would be nothing to protect us from the suns heat
No, because the atmosphere keeps in all the oxygen. Without the atmosphere the oxygen would escape.
The atmosphere is one of the most important spheres. If there was no atmosphere there would be no biosphere. If there was no biosphere there would only be the geosphere. Also, without no atmosphere there would be no more hydrosphere because of space radiation. So without the atmosphere there would only be the geosphere.
Without the atmosphere, there would be no life on earth.
Without nitrogen in the atmosphere, we would be breathing in nearly pure oxygen, which would be fatal.
Sound, unlike light, requires a medium to travel through. With no medium (atmosphere) there can be no sound. If, for instance, a meteor crashed on the moon, you would not hear it. If you were standing on the moon, you would feel it, because the shock waves travel through the medium of the moon's body, but you would not hear it.
That would depend on the exact situation. If you were in a (for now, hypothetical) space station on the Moon, or inside a space capsule, in both cases with an atmosphere, then nothing would change, compared to Earth. The reduced gravity is irrelevant in that case. On the other hand, if you were on the surface of the Moon, without an atmosphere, then some sound would pass from one astronaut to another via the soil, but whether this is enough or not would depend on the distance.
The atmosphere contains oxygen that we need to breathe. Without the atmosphere there would be no oxygen to breathe. Also without an atmosphere there would be the vacuum of space and life cannot survive in a vacuum. Just picture living in suits like the astronauts wear.
It absorbs sound so there is not an echo. Without them, the sound would bounce off the walls and would sound bad