اکنون در دسترس! پژوهش تلگرام ۲۰۲۵ — مهمترین بینشهای سال 
Mapping upsc & PSC
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📈 تحلیل کانال تلگرام Mapping upsc & PSC
کانال Mapping upsc & PSC (@mapping_psc) در بخش زبانی انگلیسی بازیگری فعال است. در حال حاضر جامعه شامل 27 862 مشترک است و جایگاه 6 972 را در دسته آموزش و رتبه 14 986 را در منطقه الهند دارد.
📊 شاخصهای مخاطب و پویایی
از زمان ایجاد در невідомо، پروژه رشد سریعی داشته و 27 862 مشترک جذب کرده است.
بر اساس آخرین دادهها در تاریخ 27 ژوئن, 2026، کانال فعالیت پایداری دارد. در ۳۰ روز گذشته تغییر اعضا برابر -483 و در ۲۴ ساعت گذشته برابر -22 بوده و همچنان دسترسی گستردهای حفظ شده است.
- وضعیت تأیید: تأیید نشده
- نرخ تعامل (ER): میانگین تعامل مخاطب 1.22% است و در ۲۴ ساعت نخست پس از انتشار، محتوا معمولاً 0.43% واکنش نسبت به کل مشترکان کسب میکند.
- دسترسی پستها: هر پست به طور میانگین 340 بازدید دریافت میکند. در اولین روز معمولاً 121 بازدید جمعآوری میشود.
- واکنشها و تعامل: مخاطبان بهطور فعال حمایت میکنند؛ میانگین واکنش به هر پست 0 است.
- علایق موضوعی: محتوا بر موضوعات کلیدی مانند places_in_news, lake, plate, border, upsc تمرکز دارد.
📝 توضیح و سیاست محتوایی
نویسنده این فضا را محل بیان دیدگاههای شخصی توصیف میکند:
“Mapping for upsc & State PSC”
به لطف بهروزرسانیهای پرتکرار (آخرین داده در تاریخ 28 ژوئن, 2026)، کانال همواره بهروز و دارای دسترسی بالاست. تحلیلها نشان میدهد مخاطبان بهطور فعال با محتوا تعامل دارند و آن را به نقطه اثرگذاری مهم در دسته آموزش تبدیل کردهاند.
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مشترکین
-2224 ساعت
-1227 روز
-48330 روز
آرشیو پست ها
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🔆 Place in News: Latvia
📍 Context
✅ Prime Minister of Latvia announced resignation over the government’s handling of incidents involving stray drones suspected to have originated from Ukraine.
📍 About Latvia
✅ Capital: Riga
✅ Located in Northeastern Europe.
✅ One of the three Baltic States:
◦ Estonia
◦ Latvia
◦ Lithuania
📍 Political Features
✅ Land Boundaries:
◦ Estonia (North)
◦ Russia (East)
◦ Belarus (Southeast)
◦ Lithuania (South)
✅ Maritime Boundaries:
◦ Baltic Sea
◦ Gulf of Riga
📍 Geographical Features
✅ Highest Point: Gaizinkalns
✅ Major Rivers:
◦ Daugava
◦ Gauja
◦ Venta
📍 Strategic Importance
✅ Latvia is a member of:
◦ NATO
◦ European Union
✅ Its proximity to Russia makes it strategically important in the context of the Russia–Ukraine conflict and European security.
#PlacesInNews #Geography
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🔆 Zero Shadow Day (ZSD) – Key Facts
📍 What is Zero Shadow Day?
✅ An astronomical phenomenon observed twice a year between the Tropic of Cancer and Tropic of Capricorn
✅ On this day, the Sun is directly overhead, and vertical objects cast no shadow at local noon
📍 Why does it happen?
✅ Caused by Earth’s axial tilt (23.5°) and its revolution around the Sun
✅ Occurs when the latitude of a place equals the Sun’s declination
📍 When does it occur?
✅ Dakshinayana → After 21 June (Summer Solstice) when Sun moves southwards
✅ Uttarayana → After 22 December (Winter Solstice) when Sun moves northwards
✅ Each location between the two tropics experiences it twice a year (exact dates vary by latitude)
📍 Duration
✅ Exact Zero Shadow is instantaneous
✅ Effect visible for about 1–1.5 minutes
📍 Recent Event
✅ Observed by the Cosmology Education and Research Training Center (COSMOS), Mysuru under the Indian Institute of Astrophysics
#Geography #Astronomy
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🔆 Sea of Japan in News
📍 Why in News
✅ North Korea recently fired a ballistic missile towards the Sea of Japan, escalating regional tensions
🔆 About the Sea of Japan
📍 Location
✅ A marginal sea of the western Pacific Ocean
📍 Boundaries
✅ Russia & Sakhalin Island – North
✅ North Korea – West
✅ South Korea – Southwest
✅ Japanese Archipelago – East & South
📍 Connected Straits
✅ To East China Sea – via Tsushima Strait & Korea Strait
✅ To Okhotsk Sea – via La Perouse Strait & Tatar Strait
✅ To Inland Sea of Japan – via Kanmon Strait
✅ To Pacific Ocean – via Tsugaru Strait
📍 Physical Geography
✅ Length: ~2,255 km
✅ Width: ~1,070 km
✅ Maximum Depth: 3,742 m
✅ Deepest Point: Dohoku Seamount (underwater volcano)
✅ Three Major Deep-Water Basins
➡️ Japan Basin (North)
➡️ Yamato Basin (Southeast)
➡️ Tsushima Basin (Southwest)
✅ Meeting point of cold northern currents & warm southern currents
✅ No large islands within the sea
📍 Rivers & Ports
✅ Largest River: Tumen (Dooman) River
📍 Major Ports
➡️ Russia: Vladivostok, Nakhodka, Sovetskaya Gavan, Alexandrovsk-Sakhalinsky, Kholmsk
➡️ North Korea: Hamhung, Chongjin, Wonsan
➡️ Japan: Niigata, Tsuruta, Maizuru
📍 Biodiversity
✅ Rich marine ecosystem
➡️ 800+ aquatic flora species
➡️ 3,500+ aquatic fauna species
📌 UPSC Relevance
✅ GS-1 – World Geography (Marginal Seas & Straits)
✅ GS-2 – East Asia Geopolitics
✅ Important for Prelims map-based questions
#places_in_news
Join https://t.me/Mapping_prelims_mains
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Repost from CSE EXAM upsc prelims mains CAPF CDS NDA
Ancient history shorts notes
Mediaeval history, geography economy CLICK HERE
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Repost from CSE EXAM upsc prelims mains CAPF CDS NDA
Civil Services 2025
Prelims Answer keys out
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🔆 Latvia Records –32°C | Baltic Nation in News
📍 Why in News
✅ Latvian Environment & Meteorology Centre reported temperatures of –32°C recently
📍 Location & Boundaries
✅ Located in the Baltic region of Northern Europe
✅ One of the three Baltic States — with Estonia (North) & Lithuania (South)
✅ Borders Russia (East) & Belarus (Southeast)
✅ Shares a maritime border with Sweden (West)
📍 Capital & Major City
✅ Riga – Largest city in the Baltics
➡️ Known for Art Nouveau (Jugendstil) architecture
➡️ Medieval Old Town – UNESCO World Heritage Site
📍 Physical Geography
✅ Climate: Temperate
✅ Highest Peak: Gaiziņkalns (311.6 m)
✅ Baltic Coastline: 494 km
➡️ Gulf of Riga (inlet of the Baltic Sea) in northwest
📍 Rivers
✅ Gauja (452 km) – Longest river entirely in Latvia
✅ Daugava (1,005 km total; 352 km in Latvia) – Longest river flowing through Latvia
📍 Political System & History
✅ Parliamentary Republic
➡️ President – Head of State
➡️ Prime Minister – Head of Government
✅ Declared Independence in 1918
❗ Incorporated into Soviet Union (1940–41 & 1944–1991)
✅ Restored Independence in 1991 after the Singing Revolution & Baltic Way protest
📍 Memberships
✅ European Union (EU)
✅ Eurozone
✅ NATO
✅ Council of Europe
✅ United Nations (UN)
✅ OECD
📍 Culture & Traditions
✅ Rich folklore with 1.2 million+ Dainas (folk songs)
✅ Jāņi (Midsummer’s Eve) – Most important annual celebration
📌 UPSC Relevance
✅ Prelims – Baltic region map-based questions
✅ GS-2 – EU, NATO & regional geopolitics
✅ Useful for climate & geography context
#places_in_news
Join https://t.me/Mapping_prelims_mains
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🔆 Climate Terms Dominating India’s Summer: Western Disturbances to El Niño
📍 Why in Focus?
✅ India is witnessing extreme summer conditions marked by heatwaves, humidity, unseasonal rainfall, and weak monsoon concerns, bringing climate terms like Western Disturbances, El Niño, La Niña, Wet Bulb Temperature into focus.
📍 Key Highlights:
✅ Western Disturbances are extra-tropical storms originating near the Mediterranean region, bringing winter rainfall and snowfall to north India and the Himalayas.
✅ ENSO (El Niño Southern Oscillation) is a Pacific Ocean climate phenomenon with three phases:
• El Niño – warming of eastern Pacific waters
• La Niña – cooling of eastern Pacific waters
• Neutral phase
✅ El Niño weakens Indian monsoon winds and is linked to droughts, reduced rainfall, and increased heatwaves in India.
✅ La Niña generally strengthens monsoon conditions in India and can increase rainfall and flood risks.
✅ Wet Bulb Temperature measures heat combined with humidity; sustained levels above 35°C can become dangerous for human survival due to reduced body cooling capacity.
📍 Challenges / Issues / Implications:
✅ Rising frequency and intensity of heatwaves due to climate change.
✅ High humidity increases physiological stress and heat-related mortality risks.
✅ Erratic monsoon and extreme weather events threaten agriculture, water security, and public health.
✅ Mains Question:
Discuss the role of climate phenomena such as ENSO and Western Disturbances in shaping India’s weather patterns. How is climate change intensifying extreme weather events in India? (250 words)
#GS1 #Geography
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🔆 Places in News: Oman
📍 Why in News
✅ Oman ports Sohar and Salalah are emerging as key lifelines for Indian exporters and GCC countries
✅ They help bypass disruptions in the Strait of Hormuz
🔆 Political Features
📍 Location
✅ Located on the southeastern edge of the Arabian Peninsula
📍 Bordering Countries
✅ Yemen — Southwest
✅ United Arab Emirates — Northwest
✅ Saudi Arabia — West
📍 Maritime Boundaries
✅ Arabian Sea — South & East
✅ Gulf of Oman — North
🔆 Geographical Features
📍 Mountain Ranges
✅ Hajar Mountains
✅ Dhofar Mountains
📍 Highest Peak
✅ Jebel Shams (“Mountain of the Sun”)
📍 Natural Resources
✅ Petroleum & Natural Gas
✅ Copper, Marble, Chromium, Gypsum & Limestone
✅ Rich fish resources
📍 Climate
✅ Hot & dry interior
✅ Hot & humid coastal regions
📍 Landscape
✅ About 82% desert land
✅ Contains Rub’ al Khali — world’s largest continuous sand desert along Saudi border
#GS1 #PlacesInNews #Geography
Join https://t.me/Mapping_prelims_mains
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Subject wise MCQ UPSC
Upsc economy - https://t.me/prelims_economy_mcqs/11813
Polity - https://t.me/Upsc_Prelims_Polity_Mcqs/7
Mapping - https://t.me/Geography_mapping_MCQ/12711
History - https://t.me/upsc_prelims_history_mcq/15
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🔆 UMNGOT RIVER (DAWKI RIVER) – IN NEWS
📍 Why in News?
✅ Soil dumping into a feeder rivulet has turned the river’s crystal-clear waters muddy, triggering government intervention in Meghalaya.
🔆 About Umngot River
📍 Basic Facts
✅ Also called Dawki River / Wah Umngot
✅ Cleanest river in India, famous for water so clear that boats look like they’re floating in air
📍 Origin & Course
✅ Origin: Eastern Shillong Peak (1,800 m altitude)
✅ Location: Flows through Dawki, West Jaintia Hills, Meghalaya
✅ Acts as a natural divide between Jaintia Hills & Khasi Hills
✅ Flows into Bangladesh, feeding the Piyain River → tributary of Surma
📍 Key Features
✅ Forms part of the India–Bangladesh border
✅ Dawki Suspension Bridge built in 1932 (British era)
📍 Significance
✅ Major hub for tourism (crystal-clear boating)
✅ Supports fishing & local livelihoods
✅ Dawki town is an important trade route between India & Bangladesh
#Geography
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🔆 GREEN PARADOX — Urban Heat & Tree Plantation
📍 What’s the issue?
✅ Cities are heating up due to climate change + urban heat islands
✅ Tree plantation is promoted as a nature-based cooling solution — but results vary
📍 Key finding (Global study | Science Advances)
✅ Introduces Temperature Regulation Capability (TRC)
➡️ TRC = Vegetated area temperature − Built-up area temperature
➡️ Negative TRC = cooling, Positive TRC = warming
📍 What did the study find?
✅ Vegetation cooled cities in most cases
❌ Dry / arid cities showed warming instead of cooling
✅ Grasslands cooled built-up areas in 78% cities
✅ Trees cooled in 98% cities, but ~25% dry cities saw warming
⚠️ In arid zones, low water → weak evapotranspiration → reduced cooling
📍 Why the paradox?
✅ Vegetation cools via evapotranspiration
❌ In water-scarce cities, this process weakens
❌ Vegetation may absorb more sunlight than concrete
❌ Extreme heat reduces plant water loss → less cooling
📍 Core takeaway
⚠️ Planting trees is not a universal solution
⚠️ Misguided greening can worsen urban warming
✅ Urban planning must be climate- and water-context specific
🔆 Mains Question
📍 “Urban greening is often projected as a solution to rising city temperatures, yet recent studies highlight a ‘green paradox’.” Examine the statement with suitable examples.
#GS1 #GS3 #Environment
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🔆 Strait of Malacca
📍 Why in News?
✅ The ongoing Hormuz crisis has highlighted the importance of the Strait of Malacca as another critical global chokepoint.
📍 Location & Geography
▪️ Connects:
✅ Andaman Sea (Indian Ocean)
➡️ South China Sea
▪️ Bounded by:
▪️ Indonesia
▪️ Malaysia
▪️ Thailand
▪️ Singapore
📍 Strategic Significance
▪️ Global Trade Artery
✅ Carries ~22% of global maritime trade
▪️ Energy Lifeline
✅ One of the world’s largest oil transit chokepoints
▪️ Shortest Route
✅ Connects East Asia with the Middle East and Europe
📍 Concerns & Vulnerabilities
▪️ Narrow Bottleneck
✅ Phillips Channel creates congestion risks
▪️ Shallow Waters
❌ Limits passage of very large vessels
▪️ Security Threats
❌ Piracy and attacks on merchant ships
▪️ Environmental Risks
❌ High risk of collisions and oil spills due to heavy traffic
📍 Significance for India
✅ Critical for India’s trade and energy imports
✅ Key to Indo-Pacific strategy and maritime security
#GS1 #Geography #PlacesInNews
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🔆 Hindu Kush Himalaya (HKH)
📍 Why in News?
✅ The International Centre for Integrated Mountain Development (ICIMOD) reported a sharp decline in snow persistence in the Hindu Kush Himalaya for the fourth consecutive year.
📍 About HKH Region
▪️ Extends ~3,500 km from:
▪️ Afghanistan (West)
▪️ to Myanmar (East)
▪️ Covers 8 countries:
✅ Afghanistan, Pakistan, India, Nepal, Bhutan, China, Bangladesh, Myanmar
📍 Significance
▪️ Known as the “Third Pole” due to vast ice reserves after Arctic & Antarctica.
▪️ Source of major Asian rivers supporting nearly 2 billion people.
📍 Major River Systems Originating from HKH
▪️ Amu Darya
▪️ Indus River
▪️ Ganga River
▪️ Brahmaputra River (Yarlung Tsangpo)
▪️ Irrawaddy River
▪️ Salween River (Nu)
▪️ Mekong River (Lancang)
▪️ Yangtze River (Jinsha)
▪️ Yellow River
▪️ Tarim River
📍 Concerns
▪️ Declining snow persistence due to climate change
▪️ Impact on river flows, agriculture and water security
▪️ Increased risk of glacial lake outburst floods (GLOFs)
📍 Conclusion
The HKH region is crucial for Asia’s water security, and its rapid ecological changes demand urgent regional cooperation and climate action.
#GS1 #Geography #places_in_news
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🔆 Beyond-Lithium Batteries: Emerging Alternatives
📍 Context
✅ Rising demand from EVs, storage systems, electronics
✅ Search for safer, cheaper, and abundant alternatives to lithium
🔆 Sodium-Ion Batteries (Na-ion)
📍 About
✅ Similar to lithium-ion, but uses sodium ions (Na⁺)
✅ Charge flow between anode ↔ cathode via electrolyte
📍 Advantages
✅ Abundant & cheap: Sodium widely available globally
✅ Safer: Lower fire risk vs lithium batteries
✅ Better logistics: Easier transport & storage
📍 Limitations
❗ Lower energy density (~100–160 Wh/kg) than lithium
🔆 Fluoride-Ion Batteries (F-ion)
📍 About
✅ Uses fluoride ions (F⁻) as charge carriers
📍 Advantages
✅ Very high energy density: Potential >2000 Wh/kg
✅ Abundant resource: Fluorine widely available
📍 Challenges
❗ Still in early research stage
❗ Issues of stability & material compatibility
🔆 Lithium-Ion Batteries (Current Dominant Tech)
📍 About
✅ Uses lithium ions (Li⁺) between electrodes
✅ Backbone of EVs, mobiles, energy storage
📍 Advantages
✅ High energy density (~150–250 Wh/kg)
✅ Low self-discharge (1.5–2%/month)
✅ Low maintenance
📍 Constraints
❗ Dependence on scarce minerals (lithium, cobalt, nickel)
❗ Supply chain risks & imports
❗ Fire risk & slower charging issues
🔆 Comparative Insight
📍 Energy Density: Fluoride > Lithium > Sodium
📍 Safety: Sodium > Lithium
📍 Availability: Sodium & Fluoride > Lithium
🔆 Significance
✅ Reduces import dependence (critical minerals)
✅ Supports clean energy transition & EV growth
✅ Promotes battery diversification & resilience
📍 Way Forward
✅ Invest in R&D for next-gen batteries
✅ Build domestic supply chains
✅ Focus on safety + sustainability standards
#GS3
#prelims
#science_technology
#science_and_technology
Join https://t.me/PIB_UPSC
https://t.me/upsc_science_and_technology
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🔆 Lipulekh Pass in News 🇮🇳
📍 Why in News
✅ Nepal objected to India resuming Kailash Mansarovar Yatra via Lipulekh Pass
✅ Cites Sugauli Treaty
✅ India rejected claims as historically unfounded
📍 Location & Geography
✅ Lipulekh Pass in Kumaon region, Uttarakhand
✅ Situated near tri-junction: India–Nepal–China
✅ Connects India with Tibet (China)
📍 Key Features
✅ Altitude: ~5,334 m (17,500 ft)
✅ High-altitude Himalayan mountain pass
✅ Traditional route for Kailash Mansarovar Yatra
📍 Strategic & Political Significance
✅ Important for India–Nepal boundary dispute
✅ Linked with Kalapani region issue
✅ Strategic access towards Tibet (China)
✅ Sensitive zone in India–China–Nepal geopolitics
📍 Exam Relevance
✅ Prelims: Map location, tri-junction, altitude
✅ Mains (GS2/GS3): Border disputes, neighbourhood relations, strategic geography
#GS1 #GS2 #Geography #IR #PlacesInNews
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1519. A “Black Hole “is a body in space which does not allow any radiation to come out. This property is due to its
