Ozone has an absorption / emission band in the range of "blue", so that is how we'd see it with our eyes... were it thick enough to more than add a hint of blue to our sky. It very strongly absorbs in UV-B and more energetic, and over a narrow band in the far infrared. So had we different sorts of eyes... those would be the ozone layer's "primary colors". Beyond this, we visualize the ozone layer by using satellites and looking at the absorption / reflection / emission of UV light at different places above Earth's surface. The ozone is... BEAUTIFUL!!!!!!!
Ozone as a gas is invisible over short light paths. It only has significant interaction with light in the UV-C, UV-B and far infrared ranges. Ozone as a liquid is described as light blue.
See "What does the ozone layer do?" in the "Related questions" section below.
If the ozone layer vanished, there would be no life on earth. It is because the ozone layer protects us from the harmful and fatal UV radiations of the sun.
If the ozone in the ozone layer is depleted then, more UV will enter the earth. This will cause damage to life on earth.
Ozone layer is destroyed by the CFC gases released. It is also depleted because of industrial released gases.
See "What is causing the depletion of the Ozone Layer?"in the "Related questions" section below.
See "What color is the ozone layer?"
Ozone is light blue in color. It can be seen from the satellites.
Ozone layer contains ozone in it. Therefore, it is named so.
Ozone layer is formed of ozone. It is a gas.
Earth has a layer of ozone. It is present as the ozone layer.
damage to ozone layer is called ozone depletion. It is thinning of ozone layer.
Ozone is a layer which protects us. Actually ozone is just a gas, ozone layer is the layer.
The layer of gases that surround the atmosphere is ozone. It is present as the ozone layer.
Ozone layer is the layer of ozone. Humans are altering it by CFC's.
The ozone layer is in the stratosphere. It is a pool of ozone molecules.
the ozone layer is the the part of the atmosphere that screens out harmful radiation from the sun.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.