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June 05, 2020 - The Indian EXPRESS

A science teacher explains: Know the ozone, the safety net over our planet

A science teacher explains: Know the ozone, the safety net over our planet
Eart's protective atmosphereFile Photo / © Photabulous!

The “ozone hole” is the term commonly used for areas where the ozone layer gets damaged. Ozone layer damage is more like a lean patch than a hole.

By Meenambika Menon

Recently, there was news that “scientists recorded the smallest ozone hole since 1982 above Antarctica in September 2019.” The questions that come up are what the ozone hole is, where it is, why its size is changing and how it affects us, etc.

Let us start with, what is ozone?

Ozone is an allotrope of oxygen. When a chemical element exists in more than one form due to the arrangement or number of atoms, they are called allotropes. Ozone (O3) is an extremely reactive gas composed of three oxygen atoms. The oxygen (O2) that we breathe is a gas composed of two oxygen atoms.

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