What is ozone? How is ozone formed? How does ozone layer product us from the harmful effects in the environment? Write the full form of CFC. What harm can they do?

Open in App

Solution

Ozone layer is a layer consisting of ozone molecules which acts as a protective layer for life on the earth.

It protects the earth by absorbing harmful ultraviolet radiations of the sun. These radiations, if reach the earth’s surface, can cause skin cancer.

The ozone layer is continuously formed in the atmosphere because of the action of UV rays on molecular oxygen. The high-energy UV radiations break down O₂ molecules present in upper layers of the atmosphere into nascent oxygen.

Then, this free oxygen atom combines with an oxygen molecule to form ozone.

CFC stands for chlorofloro carbon.
The ozone layer is getting depleted by the action of chlorofluorocarbons (CFCs) used as coolant in refrigerators and perfumes. The CFCs are acted upon by UV rays in the stratosphere, liberating the Cl atoms, which act as catalysts to degrade ozone into molecular oxygen.

Suggest Corrections

Similar questions

What depletes the ozone layer in the atmosphere? What are the harmful effects of the depletion of the ozone layer on us?

Ozone, which protects the environment from harmful effects of UV radiations from directly falling on earth, is present in which layer?

Ozone layer _________ the sun's harmful UV rays and protects the Earth from its harmful effects.

Join BYJU'S Learning Program