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प्रश्न
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
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उत्तर
The small ozone layer on the top of the atmosphere is crucial for human survival because it absorbs harmful ultraviolet radiations present in sunlight and prevents it from reaching the Earth’s surface.
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संबंधित प्रश्न
What role dose infra-red radiation play in physical therapy?
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(a) Micro waves .
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State two properties of infrared radiations which differ from visible light.
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- Identify and name the part of electromagnetic spectrum to which these radiations belong.
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