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Ozone is mainly found in two regions of the Earth's atmosphere. Most ozone (about 90%) resides in a layer that begins between 6 and 10 miles (10 and 17 kilometers) above the Earth's surface and extends up to about 30 miles (50 kilometers). This region of the atmosphere is called thestratosphere.

The layer of earth's atmosphere that has been consisted of the ozone has been the stratosphere. Thus, option B is correct.

The atmosphere has been the earth's surface that has been preventing the earth from the harmful UV radiations of the sun.

The atmosphere has been starting from the earth surface with Troposphere to the Exosphere in the space.

Ozone in atmosphere

The ozone has been formed with the interactions of UV rays with molecular oxygen in the atmosphere.

The layer of earth's atmosphere that has been consisted of the ozone has been the stratosphere. Thus, option B is correct.

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