Quote:
Originally Posted by Zohaib Pervaiz
1)305 was not there 300 was the option
2)one option was mica( i think the right ans is mica)
3)there were options for ozone layer,a) it prevent uv rays, b) obsobs pollution and all of these( i choose all of these)
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Q was which ONE is most important role of Ozone
so ans is it prevents UV rays...
in pollution Ozone doesn't have significant role...nor in option A...I don't remember it...but it was not so important.