Which of the following protects life on earth from harmful effects of UV radiations from sun? — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Ultraviolet (UV) radiation from the sun is highly energetic and harmful to living tissues, capable of causing DNA damage, skin cancers, and cataracts. Step 2: Ozone (O3), located primarily in the stratosphere, absorbs a significant fraction of these incoming ultraviolet rays (specifically UV-B and UV-C). Step 3: This ozone layer acts as a protective shield for life on Earth, matching option (d).