Like all light UV travels in waves
Sunlight can pass through atmosphere. But not the part containing UV rays.
Yes, some ultraviolet (UV) waves can penetrate Earth's atmosphere. However, the ozone layer in the stratosphere filters out much of the harmful UV radiation, particularly the most dangerous UV-C waves. UV-A and UV-B waves are partially absorbed by the atmosphere but can still reach the Earth's surface.
By being transmitted through the atmosphere.
When the Sun is near noon, all layers of the atmosphere contain some UV. Below the ozone layer, most UV-B and all UV-C (and more energetic light) is gone. But UV-A goes all the way through.
The UV rays must pass through atmosphere. So the layer must be in Atmosphere. The layer of the atmosphere is he ozone layer.
Yes, most of the UV radiation from stars is blocked by Earth's atmosphere. However, some UV light does reach the surface, which is why we still receive UV radiation from the Sun. This is why we need protection like sunscreen to prevent damage from UV radiation.
Ozone in the atmosphere absorbs UV rays.
The "ozone" layer is particularly important for absorbing UV rays since the molecular bonds in ozone vibrate at the frequency of UV radiation and absorb it quite well. The ozone layer lies near the bottom of the stratosphere. Note that UV radiation spans a range of frequencies. UV-A is the least absorbed/reflected UV radiation. Mostly the atmosphere lets it through. UV-B is absorbed mostly by the ozone in the atmosphere - mostly in the ozone layer in the stratosphere, but there is ozone at all layers of the atmosphere. UV-C is absorbed by the oxygen and nitrogen in the atmosphere - so very little of that makes it through; the atmosphere is about 78% nitrogen and 21% oxygen.
They burn up and explode.
UV is introduced in atmosphere from the sun. These are high energy rays.
Yes for a little way.
Phosphorus does not travel through the atmosphere.