Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
The ozone layer of the atmosphere blocks:
A
Infrared radiations.
B
Sunlight.
✓
$UV$ radiations.
D
Both $UV$ and indrared radiation.
✓
Answer
Correct option: C.
$UV$ radiations.
Ozone layer blocks the $UV$ radiations coming from sun and thus preventing organisms on earth from various diseases like cataract and preventing the immune system from weakening.
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