← 16 October 2026's Current Affairs · Environment GA Prelims ★★★★☆ Mains ★★☆☆☆
Quick scan: AmazonFACE, Prussian Blue and Blue Flag
बातमीत का?
Which antidote treats thallium and radioactive caesium poisoning? Plus the Blue Flag body Prelims keeps testing
AmazonFACE is a Brazilian project that uses Free-Air Carbon Dioxide Enrichment to study how Amazon rainforest responds to higher carbon dioxide.
Why it matters: factual, Prelims-type
What you need to know
2 मिनिटे
AmazonFACE is a Brazilian project that uses Free-Air Carbon Dioxide Enrichment to study how Amazon rainforest responds to higher carbon dioxide.
Prussian Blue is used as an antidote for poisoning by thallium and radioactive caesium.
Blue Flag certification for beaches is awarded by the Foundation for Environmental Education.
स्रोत: Topper IAS editorial (PIB / The Hindu / Indian Express)
महत्त्वाची तथ्ये
Remember these
- AmazonFACE is a Brazilian Free-Air Carbon Dioxide Enrichment (FACE) experiment in the Amazon rainforest, testing how trees respond to higher CO2.
- Prussian Blue (ferric hexacyanoferrate) is an antidote for thallium and radioactive caesium poisoning; it binds the metals in the gut so they are excreted.
- Blue Flag certification for beaches is awarded by the Foundation for Environmental Education (FEE), Denmark-based.
- Blue Flag criteria cover water quality, environmental education, environmental management, and safety and services.
- In India, Kasarkod and Padubidri beaches in Karnataka are among the first Blue Flag beaches certified in 2020.
पूर्व · मुख्य
How the exam will ask it
पूर्व
- Free-Air Carbon Dioxide Enrichment (FACE) experiments raise CO2 around vegetation in open air, without enclosing it in chambers.
- Prussian Blue is used as a chelating-type antidote for thallium and radioactive caesium (Cs-137) poisoning.
- Blue Flag is an eco-label given by the Foundation for Environmental Education, not by a government or the UN.
- Blue Flag certification applies to beaches, marinas and sustainable boating tourism operators.
मुख्य
GS-III (Environment; Science and Technology): ecosystem-scale experiments like AmazonFACE help gauge whether forests will remain carbon sinks under rising CO2, informing climate models and mitigation policy. Beach eco-labels such as Blue Flag link coastal management, tourism and cleanliness standards; the way forward is sustained monitoring beyond certification.
Quick recall
Answer before you reveal
India's monthly unemployment rate, reported recently by the NSO at 5% for September, is estimated through which survey?
- Household Consumption Expenditure Survey
- Periodic Labour Force Survey (PLFS)
- Annual Survey of Industries
- Economic Census
उत्तर पहा
उत्तर: B — The correct answer is Periodic Labour Force Survey (PLFS). The National Statistics Office under MoSPI estimates the monthly and quarterly unemployment rates through the Periodic Labour Force Survey.
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