Several units of measurement are commonly applied to ozone: ppm - parts per million, usually parts per million volume (ppmV), detailing the number of molecules of ozone per million molecules of "air". Dobson Units (DU) - The number of ozone atoms in a column of atmosphere with a width and depth of a centimeter2 or meter2, and the entire height of the atmosphere from Earth's surface to the Sun (or the satellite measuring it). %wt or %vol - for a given amount of gas, how much of its mass (%wt) or volume (%vol) is just ozone. (Common for ozone generators.) mass/unit volume, pascals (partial pressure), and I won't atempt to chew up these definitions...
Ozone layer contains ozone in it. Therefore, it is named so.
Earth has a layer of ozone. It is present as the ozone layer.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
Ozone layer is a complete layer. Only the ozone at the poles is destroyed.
Stratosphere contains the ozone layer. It is a pool of ozone molecules.
Ozone layer contains ozone in it. Therefore, it is named so.
ozone layer in Tagalog: ozone layer (no direct Tagalog translation)
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.
The layer of gases that surround the atmosphere is ozone. It is present as the ozone layer.
The ozone layer is in the stratosphere. It is a pool of ozone molecules.
Ozone layer is the layer of ozone. Humans are altering it by CFC's.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
In the ozone layer. Where the ozone is.
The stratosphere has ozone in it. It is present as ozone layer.
The upper layer of the atmosphere is formed by ozone layer. This is a layer of ozone gas.