The small ozone layer on top of the stratosphere is crucial for human survival. Why?
The small ozone layer on the top of the stratosphere is crucial for human survival because the ozone layer absorbs U.V radiation emitted by the sun.
CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
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