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One Liners 04-03-2026
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Geography
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Total Lunar Eclipse (Blood Moon)
- Phenomenon – It Occurs when Sun, Earth, and Moon align (syzygy) during a full Moon, with the Moon passing through Earth’s shadow.
- Earth’s Shadow -
- Umbra – Dark inner cone, full blockage of sunlight.
- Penumbra – Lighter outer region, partial blockage.
- Types -
- Penumbral – Subtle dimming.
- Partial – Part of Moon darkens.
- Total – Entire Moon in umbra, most dramatic.
- Blood Moon Effect – During total eclipse, Moon appears reddish due to Rayleigh scattering.
- Earth’s atmosphere filters blue light and refracts red light, illuminating the Moon with the glow of global sunrises and sunsets.
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International Relations and Issues
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Operation "Lion’s Roar"
- Actors – Israel (with U.S. support)
- Target – Tehran and multiple Iranian cities (Isfahan, Qom, Karaj, Kermanshah, Lorestan, Tabriz, Kenarak naval facilities)
- Impact – Isfahan, central to Iran’s ballistic missile program, suffered major damage.
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Operation "Epic Fury" Summary
It was confirmed by U.S. President Donald Trump via Truth Social.
- Actors – United States military forces
- Target – Strikes on Iran, described as “major combat operations”
- Objective – To prevent Iran from developing nuclear weapons
- Significance – It represents the most direct U.S.–Iran confrontation in decades.
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Operation "True Promise 4"
- Initiation – Launched after U.S. and Israeli coordinated air strikes on Iran and its leadership (Saturday).
- Actors – Islamic Republic of Iran.
- Targets – Tel Aviv and U.S. assets across the Middle East.
- Scope – Counterattacks also targeted Washington’s regional allies, including the UAE, Bahrain, Kuwait, and Qatar, all of which host U.S. military bases.
- Significance – It marks Iran’s direct retaliation against both U.S. and Israeli
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Environment
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Bats – Vision & Navigation
- Myth – Bats rely only on echolocation because they cannot see.
- Reality – Bats are not blind; eyesight varies by species.
- Vision –
- Sensitive to light, though not sharp or colorful like humans.
- Many species see well in very low-light conditions.
- Large fruit bats can see up to three times better than humans in dim light.
- Navigation -
- Use echolocation by emitting ultrasound.
- Echoes from objects help determine distance, shape, size, and movement.
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GI-Tagged Medicinal Plants
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Medicinal Plants
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Place
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Use
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Navara Rice (Oryza sativa L.)
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Kerala
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Used in Panchakarma (Navarakizhi); treats rheumatic pain, polio-related disabilities, blood circulation problems, and respiratory diseases.
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Green Cardamom (Elettaria cardamomum (L.) Maton)
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Kerala & Karnataka
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Used to treat asthma, relieve cough, and difficulty in urination.
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Ganjam Kewda Flower (Pandanus odorifer (Forssk.) Kuntze)
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Odisha
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Used for eye problems and respiratory disorders.
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Saffron (Crocus sativus L.)
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Jammu & Kashmir
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Used to treat migraine, heal wounds, vomiting, and skin discolouration and patches.
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Nagauri Ashwagandha (Withania Somnifera)
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Rajasthan
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Used to reduce stress, improve sleep, boost energy, and enhance vitality.
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Science
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Smart Materials
- Definition – Materials characterized by self-adaptability, self-sensing, memory, and decision-making.
- Response mechanism – Change shape or properties when exposed to external forces (electrical, magnetic, thermal).
- Functionality – Multifunctional; capable of controlled transformations through physical interactions.
- Sensitivity – React to variations in temperature, moisture, pH, electric or magnetic fields by altering appearance, state, or properties.
- Applications – Defence, packaging, soft robotics, medical devices, adaptive structures, self-powered sensors and more.
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Nucleic Acid Testing (NAT)
Supreme Court is weighing whether to mandate NAT for blood transfusions.
- Definition – Detect specific nucleic acid sequences to identify pathogens (e.g., viruses, bacteria).
- Purpose – To reduce transfusion-transmitted infections (TTIs) by narrowing the window period for HIV, HBV, and HCV.
- Global adoption – Introduced in late 1990s; ~33 countries use NAT for HIV, ~27 for HBV.
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Thalassemia in India
- India is regarded as the thalassemia capital of the world.
- Prevalence – ~40 million carriers and over 100,000 patients.
- Annual burden – 10,000–15,000 children born with thalassemia major each year.
- Global impact – India accounts for a significant share of the worldwide thalassemia burden.
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Thalassemia
- Definition – Inherited blood disorder where the body produces insufficient haemoglobin, the protein in red blood cells that carries oxygen.
- Types – Classified by which part of haemoglobin is affected and the severity of anemia.
- Impact – Severe anemia can damage organs.
- Prevalence – More common among individuals with certain family ancestries.
- Symptoms – Dizziness, shortness of breath, fast heartbeat, headache, leg cramps, difficulty concentrating, pale skin etc.
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