GENERAL KNOWLEDGE

Detailed explanation-1: -The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth’s surface, in the stratosphere.

Detailed explanation-2: -About 90% of ozone in the atmosphere is concentrated between 15 and 30 kilometres above the earth’s surface (stratospheric ozone). At this level it provides a protective shield from the sun, we think of this as good ozone. It is also found at ground level in lower concentrations (tropospheric ozone).

Detailed explanation-3: -Ozone layer is present in the stratosphere.