Read before you practise · 3 min
Read Ozone Protection from Measure to Treaty
Ozone-layer questions often connect how ozone is measured, the harm from increased UV-B and the global response.
NSEB · Biodiversity and Conservation & Environmental Issues · 3 linked questions · 100% coverage
Know this first
Ozone Depletion is the central idea in this question pattern. Identify the condition in the stem before applying the method below.
Study deeper: NCERT Biology · Biodiversity and Conservation & Environmental Issues
Measure the ozone column
A Dobson unit expresses the total ozone in an atmospheric column. Depletion allows more harmful UV-B to reach the surface; exposure can inflame the cornea and cause snow blindness.
Know the agreement
The Montreal Protocol targets ozone-depleting substances, including CFCs and related chemicals.
OlympIQ exam lens
- ✓Dobson unit → column ozone.
- ✓UV-B → corneal inflammation/snow blindness.
- ✓Montreal Protocol → ozone-depleting substances.
OlympIQ trap
The Montreal Protocol is not an agreement about greenhouse gases generally.
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