Question

what is ozone layer.why it is usefull for earth​

Answer 1

Answer:

Because it will stop the harmful gases and sunlight from the earth

Answer 2

Answer:

The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects. When the sky is clear

And it stops allowing the powerful sun rays directly till earth.

so that's why we're have to protect ozone layer

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