Prelims Pointers for 29-March-2025

by Vajiram & Ravi

29-03-2025

08:31 AM

Gene Bank

29-03-2025

08:31 AM

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1 min read
Gene Bank Blog Image

Gene Bank Latest News

Establishment of Second National Gene Bank

Why in the News?

  • The Government of India has announced the establishment of the Second National Gene Bank to conserve 10 lakh crop germplasm for ensuring future food and nutritional security.
  • This initiative is part of the “Investing in Innovations” theme of the Union Budget 2025-26.

What is a Gene Bank?

  • A Gene Bank is a storage facility that preserves seeds, pollen, and plant tissues to protect plant species from extinction and ensure their availability for future use.
  • These stored samples help in crop breeding, scientific research, and biodiversity conservation.
  • Gene banks play a crucial role in maintaining genetic diversity, essential for climate resilience and food security.

India’s First National Gene Bank

  • Established:1996 by the Indian Council of Agricultural Research - National Bureau of Plant Genetic Resources (ICAR-NBPGR) in New Delhi.
  • Current Status:
    • Second-largest Gene Bank globally after the Svalbard Global Seed Vault in Norway.
    • Houses 4,71,561 accessions of 2,157 species.
    • Provides plant genetic resources for use by both the public and private sectors involved in crop improvement and genetic conservation.

National Bureau of Plant Genetic Resources (NBPGR)

  • Apex Institution under the Indian Council of Agricultural Research (ICAR).
  • Objective: Conservation, evaluation, and utilization of plant genetic resources for sustainable agriculture and food security.
  • Headquarters: New Delhi.

National Gene Fund

  • Established Under:  Section 45 of the Protection of Plant Varieties and Farmers’ Rights Act, 2001 (PPVFR Act).
  • Objective:
    • Ensures fair distribution of benefits derived from genetic resources.
    • Supports conservation efforts and promotes sustainable farming practices.
    • Provides financial incentives to farmers and institutions engaged in biodiversity conservation.

Gene Bank FAQs

Q1. What is the National Gene Bank?
Ans. The National Gene Bank in India is a repository for conserving plant genetic resources, managed by the National Bureau of Plant Genetic Resources (NBPGR), New Delhi.

Q2. What is the purpose of the National Gene Bank?
Ans. It preserves crop diversity, wild plant species, and rare genetic material to ensure agricultural sustainability and food security.

Q3. How does the National Gene Bank store genetic material?
Ans. The bank stores seeds in cold storage at sub-zero temperatures, using cryopreservation, field gene banks, and in-vitro conservation techniques.

Q4. How does the National Gene Bank help in climate resilience?
Ans. By preserving climate-resilient crop varieties, the gene bank helps in developing drought-resistant and disease-resistant crops to combat climate change.

Q5. What is India’s global position in genetic conservation?
Ans. India is among the few countries with an advanced gene bank system and collaborates with international gene banks like the Svalbard Global Seed Vault in Norway.

Source: PIB


Teesta River Blog Image

Teesta River Latest News

Recently, Bangladesh welcomed Chinese participation in the Teesta River Comprehensive Management and Restoration Project.

About the Teesta River

  • Geographical significance: The Teesta River is a major transboundary river flowing through India and Bangladesh, serving as a crucial water resource for both nations.
  • Origin: The river originates from the Tso Lhamo Lake at an elevation of approximately 5,280 meters in North Sikkim, India. 
    • Other sources cited include the Pahunri Glacier, Khangse Glacier, and Chho Lhamo Lake.
  • Course: The Teesta flows southward through the Sikkim Himalayas, passing towns like Rangpo, and then through West Bengal before entering Bangladesh, where it joins the Brahmaputra River (known as the Jamuna River in Bangladesh). 
    • Historically, the Teesta was a major tributary of the Ganges River.
  • Length and basin area: The river spans approximately 414 kilometers, with a drainage basin covering around 12,540 square kilometers. Notably, 83% of the basin lies in India, while 17% is in Bangladesh.
  • Tributaries:
    • Left-bank tributaries: Lachung Chhu, Chakung Chhu, Dik Chhu, Rani Khola, and Rangpo Chhu.
    • Right-bank tributaries: Zemu Chhu, Rangyong Chhu, and Rangit River.
  • Hydroelectric projects and barrages:
    • In India:
      • Teesta-V Dam: 510 MW, located in Gangtok district, Sikkim.
      • Teesta-III Dam: 1,200 MW, situated in Mangan district, Sikkim.
      • Teesta Low Dam III & IV: 132 MW and 160 MW respectively, both in Kalimpong district, West Bengal.
      • Gajoldoba Barrage: Primarily for irrigation purposes in West Bengal.
    • In Bangladesh:
      • Duani Barrage: Used mainly for irrigation.
      • Barakhata Teesta Barrage: Another significant irrigation infrastructure.

Teesta River FAQs

Q1. Where does the Teesta River originate?
Ans. The Teesta River originates from the Tso Lhamo Lake in Sikkim and flows through West Bengal and Bangladesh before merging with the Brahmaputra.

Q2. What is the Teesta River water-sharing dispute?
Ans. India and Bangladesh have an ongoing dispute over Teesta's water distribution, with Bangladesh seeking a fair share, while West Bengal expresses concerns over water availability.

Q3. What is the ecological significance of the Teesta River?
Ans. The river supports rich biodiversity, agriculture, and hydropower projects, but glacial retreat and human activities threaten its flow.

Source: TH


Earthquakes Blog Image

Earthquakes Latest News

A 7.7-magnitude earthquake struck central Myanmar on March 29, 2025, causing significant destruction in Mandalay and claiming at least 144 lives.

About Earthquakes

  • Earthquake: Sudden shaking or trembling of the Earth's surface due to the release of stored energy in the Earth's crust or upper mantle.
  • Focus (Hypocentre): The point within the Earth where the earthquake originates.
  • Epicentre: The point on the surface directly above the focus.
  • Seismograph: An instrument used to detect and measure earthquakes.
  • Isoseismic line: A line connecting points on the surface experiencing the same intensity.

Types of Seismic Waves

Type

Description

Speed

Primary (P) Waves

Fastest, travel through solids, liquids, and gases

Fastest

Secondary (S) Waves

Travel through solids only, cause more damage

Slower than P-waves

Surface Waves

Slowest, cause maximum destruction

Slowest

Causes of Earthquakes

  • Fault zones: Most earthquakes occur along fault lines, where stress builds up due to tectonic movements.
  • Major faults:
    • Thrust faults (Convergent boundary) → Most powerful quakes (Magnitude 8+).
    • Strike-slip faults (Transform boundary) → Horizontal movement (e.g., Sagaing Fault, San Andreas Fault).
    • Normal faults (Divergent boundary) → Less intense quakes (Magnitude <7).
  • Plate Tectonics: Tectonic movement at plate boundaries can trigger earthquakes:
    • Convergent BoundariesSubduction zones, causing megathrust earthquakes (e.g., 2004 Indian Ocean earthquake).
    • Divergent BoundariesSpreading ridges generate mild earthquakes.
    • Transform BoundariesHorizontal movement of plates leads to strike-slip earthquakes (e.g., Sagaing Fault, San Andreas Fault).
  • Volcanic activity: Magma movement inside volcanoes can cause volcanic earthquakes.
    • Myanmar has active volcanoes, contributing to seismic activity.
  • Human-induced earthquakes: Mining, dam construction, and deep drilling can trigger artificial seismic activity.

Why Does Myanmar Experience Frequent Earthquakes?

  • Tectonic Setting: Myanmar lies at the junction of three major tectonic plates:
    • Indian Plate (moving northward)
    • Eurasian Plate (moving southward)
    • Burma Microplate (moving eastward)
  • The Sagaing Fault, a strike-slip fault, runs north-south through central Myanmar, making it highly prone to seismic activity.

Earthquakes FAQs

Q1. What causes earthquakes?
Ans. Earthquakes are caused by the sudden release of energy due to the movement of tectonic plates along faults.

Q2. What is the difference between the Richter scale and the Mercalli scale?
Ans. The Richter scale measures earthquake magnitude (energy released), while the Mercalli scale measures the intensity and impact on people and structures.

Q3. What are the major earthquake-prone zones in India?
Ans. India has four seismic zones. Zone V (most active) includes regions like the Himalayas and the Northeast, while Zone II (least active) includes central and southern India.

Q4. What is the significance of the Ring of Fire in earthquakes?
Ans. The Ring of Fire is a highly seismically active zone in the Pacific Ocean where most of the world's earthquakes and volcanic eruptions occur due to subduction zones.

Q5. What are the mitigation strategies for earthquakes?
Ans. Earthquake mitigation includes retrofitting buildings, enforcing seismic-resistant construction codes, early warning systems, and public awareness programs.

Source: IE


Coeliac Disease Blog Image

Coeliac Disease Latest News

AI could speed up the diagnosis of coeliac disease, according to recent research.

About Coeliac Disease

  • It is an inherited autoimmune disorder.
  • Cause: 
    • It is caused byan immune reaction to eating gluten. 
    • Gluten is a protein found in foods containing wheat, barley, or rye.
    • If you have celiac disease, eating gluten triggers an immune response to the glutenprotein in your small intestine.
    • Over time, this reaction damages your small intestine's lining and prevents it from absorbing nutrients, a condition called malabsorption.
  • Symptoms: 
    • The intestinal damage often causes symptoms such as diarrhea, fatigue, weight loss, bloating, or anemia. 
    • It also can lead to serious complications if it is not managed or treated. 
    • In children, malabsorption can affect growth and development in addition to gastrointestinal symptoms.
  • People with a first-degree relative with celiac disease (parent, child, sibling) have a 1 in 10 risk of developing celiac disease.
  • Celiac disease can develop at any age after people start consuming gluten. 
  • It is estimated to affect 1 in 100 people worldwide.
  • Treatment:
    • There's no definite cure for celiac disease. 
    • But for most people, following a strict gluten-free diet can help manage symptoms and help the intestines heal.

Coeliac Disease FAQs

Q1. What is the coeliac disease?

Ans. Coeliac disease is a condition where your immune system attacks your own tissues when you eat gluten. 

Q2. What is malabsorption?

Ans. A condition where the intestine fails to absorb nutrients

Q3. How is Coeliac Disease treated?

Ans. By following a strict gluten-free diet

Source: TG


Silvaguard Drone Blog Image

Silvaguard Drone Latest News

Dryad Networks, a pioneer in ultra-early wildfire detection technology recently introduced the Silvaguard drone, an AI-based technology designed to enhance the early detection, location, and monitoring of wildfires.

About Silvaguard Drone

  • It is an AI-based drone designed to enhance the early detection, location, and monitoring of wildfires.
  • It was introduced by Dryad Networks, an environmental IoT startup based in Berlin.
  • The drone will deliver infrared images, among other things, and works in combination with a fire detection system that the company developed earlier and that's already being used in several countries. 
  • The fire detection system, called Silvanet, is designed to detect wildfires at the smoldering stage using solar-powered gas sensors connected via a wireless network.
  • Each gas sensor can protect an area the size of a football field and be attached to a tree. 
  • The plan is that once Silvanet detects a fire, it will trigger a nearby Silvaguard drone to fly to the location and provide detailed images.
  • The information about the fire, including geographic coordinates, video and infrared images, will then be sent to the firefighters who will then know where the fire is spreading and how big it is.
  • The system aims to enhance firefighting efficiency by delivering precise fire locations and statuses in real-time.

Silvaguard Drone FAQs

Q1. What is the primary purpose of the Silvaguard Drone?

Ans. To enhance the early detection, location, and monitoring of wildfires.

Q2. Which company developed the Silvaguard Drone?

Ans. Dryad Networks

Q3. What type of images does the Silvaguard Drone provide?

Ans. Infrared images

Source: DD


Greenland

29-03-2025

07:33 AM

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1 min read
Greenland Blog Image

Greenland Latest News

US Vice President JD Vance landed in Greenland amid renewed calls from President Donald Trump to assert control over the territory.

About Greenland

  • Geographical location: North Atlantic Ocean, between North America and Europe
  • Capital: Nuuk
  • Highest point: Gunnbjørn’s Fjeld
  • Climate: Arctic climate, with temperatures ranging from -50°C in winter to 10–15°C in summer
  • Natural resources: Minerals, oil, gas, and rare earth elements
  • Strategic importance: Pituffik Space Base is crucial for US missile defense systems
  • Historical and Political background: Greenland is an autonomous territory of Denmark but holds strategic significance due to its location between North America and Europe.
    • The island was a Danish colony until 1979, when it gained home rule; in 2009, it achieved self-governing status, but foreign policy, defense, and monetary matters remain under Denmark’s control.

US Interests in Greenland

  • Strategic military location: The Pituffik Space Base is crucial for the US ballistic missile warning system due to its position along the shortest route between North America and Europe.
    • The 1951 Agreement allows the US access to the base but requires prior notification to Greenland and Denmark.
  • Natural resources and economic interests: Greenland is rich in minerals, oil, and natural gas, including rare earth minerals, which are vital for US economic and technological interests.
    • Despite this, most mining companies operating in Greenland are Australian, Canadian, or British.
  • US attempts to acquire Greenland: In 2019, Trump proposed to buy Greenland from Denmark, but the offer was rejected.
    • In 2025, Trump reaffirmed his belief that the US should control Greenland, arguing it is strategically and economically necessary.

Greenland FAQs

Q1. Where is Greenland located?
Ans. Greenland is the world’s largest island, located in the Arctic region, between the North Atlantic and Arctic Oceans, and is an autonomous territory of Denmark.

Q2. Why is Greenland important for climate change studies?
Ans. Greenland’s ice sheet is melting rapidly due to global warming, contributing to rising sea levels and affecting global climate patterns.

Q3. What natural resources are found in Greenland?
Ans. Greenland is rich in rare earth minerals, uranium, iron ore, oil, and gas, making it strategically important for global energy and technology sectors.

Source: IE


Scarborough Shoal Blog Image

Scarborough Shoal Latest News

China deployed two long-range H-6 bombers around the Scarborough Shoal recently, in Beijing's latest move to assert sovereignty over the hotly disputed atoll in the South China Sea.

About Scarborough Shoal

  • The Scarborough Shoal (also known in English as the Scarborough Reef) is an oceanic coral atoll that developed on top of a seamount into a triangle shape in the eastern part of the South China Sea.
  • It is located some 220 kilometers west of the Philippines’ Island of Luzon.
  • It is the largest atoll in the South China Sea, submerged at high tide with few rocks above sea level.
  • This atoll extends 18 km along its northwest-southeast axis and reaches 10 km along its northeast-southwest axis.
  • The deep waters around the shoal make it a productive fishing area, rich in marine life, and the lagoon also contains many commercially valuable shellfish and sea cucumbers.
  • The shoal is the source of an ongoing and, so far, unresolved dispute between the People’s Republic of China and the Philippines, with both countries claiming that the shoal lies within their territory and saying they have exclusive rights to access its waters.
  • There are no structures built on Scarborough Shoal, but the feature is effectively controlled by China, which has maintained a constant coast guard presence at the feature since 2012.
  • China, which now refers to the shoal as Huangyan Island, makes a historical claim to the area, stating that they can trace their ownership of the area back to the Yuan Dynasty of the 1200s.
  • The Philippines claim the area on the basis of geography, as it is much closer to the Philippines’ main island of Luzon, which contains the capital, Manila, but lies over 500 miles from China.
  • It is considered within the Philippines’ 200-nautical mile exclusive economic zone, based on the 1982 United Nations Convention on the Law of the Sea (UNCLOS). 

Scarborough Shoal FAQs

Q1. What country owns Scarborough Shoal?

Ans. Scarborough Shoal is a disputed territory in the South China Sea, claimed by both China and the Philippines.

Q2. Where is Scarborough Shoal located?

Ans. South China Sea

Q3. How large is Scarborough Shoal?

Ans. 18 km by 10 km

Source: NDTV


Perm Submarine Blog Image

Perm Submarine Latest News

Russian President Vladimir Putin recently launched the Perm, a Project 885M Yasen-class nuclear-powered submarine, from Murmansk. 

About Perm Submarine

  • It is a fourth-generation nuclear-powered attack submarine belonging to the Yasen-M class (Project 885M).
  • Named after the city of Perm in the Urals, it is the sixth vessel in the Yasen/Yasen-M series and the first Russian nuclear submarine to be officially equipped with the 3M22 Zircon hypersonic cruise missile as a standard feature. 
  • It is scheduled to enter service with the Russian Navy in 2026.

Perm Submarine Features

  • It is powered by a pressurized water-cooled nuclear reactor generating 200 megawatts (approximately 268,204 hp).
  • It can reach speeds of up to 31 knots underwater and 16 knots on the surface.
  • It has a 25–30-year core life, eliminating the need for mid-life refueling, and allows natural coolant circulation, contributing to lower acoustic signatures. 
  • With a maximum diving depth of 600 meters and an operational depth of 520 meters, the Perm can remain submerged for up to 100 days.
  • Its overall length is 130 meters, with a beam of 13 meters and a draft of 9.4 meters, and it accommodates a crew of 64 members.

Perm Submarine FAQs

Q1. What type of submarine is the Perm?

Ans. Fourth-generation nuclear-powered attack submarine

Q2. What makes the Perm submarine unique in the Russian Navy?

Ans. It is the first Russian nuclear submarine to be officially equipped with the 3M22 Zircon hypersonic missile

Q3. How does the Perm submarine reduce its acoustic signature?

Ans. By eliminating mid-life refueling and allowing natural coolant circulation.

Source: FP


Tadoba-Andhari Tiger Reserve Blog Image

Tadoba-Andhari Tiger Reserve Latest News

Maharashtra’s Tadoba-Andhari Tiger Reserve recently introduced new tourist-friendly reforms, including a fast-track safari entry system, relaxed rules for late-night arrivals, and improved full-day safaris.

About Tadoba-Andhari Tiger Reserve

  • Location: It is located in the Chandrapur district in Maharashtra.
  • It is the largest and oldest Tiger Reserve of Maharashtra. 
  • The origin of the name "Tadoba" lies with the name of the god "Tadoba" or "Taru",worshipped by the tribes that live in the dense forests of the Tadoba and Andhari regions. "Andhari" refers to the Andhari River that meanders through the forest.
  • The total area of the reserve is 625.4 sq. km. This includes Tadoba National Park, covering 116.55 sq. km, and Andhari Wildlife Sanctuary, covering 508.85 sq. km.
  • Corridor: The reserve has corridor linkages with Nagzira-Navegaon and Pench Tiger Reserves within the State.
  • Habitat:
    • Biogeographically, the reserve falls in the Central Plateau province of the Deccan Peninsula.
    • The habitat has undulating topography in the north and is rich in biodiversity.
  • Vegetation: Southern Tropical Dry Deciduous
  • There are two lakes and one waterway in the reserve, Tadoba Lake, Kolsa Lake, and the Tadoba River.
  • Flora:
    • It is blessed with thick forests covered with teak trees and other vegetation such as crocodile bark, salai, tendu, karaya gum, and mahua madhuca.
    • The reserve is adorned with patches of grass and bamboo shrubberies.
  • Fauna:
    • The notable faunal species include the tiger, leopard, sloth bear, wild dog, gaur, chital, and sambar.
    • As many as 280 species of birds are found, apart from reptiles (54 species), amphibians (11 species), and fishes (84 species).

Tadoba-Andhari Tiger Reserve FAQs

Q1. Where is Tadoba-Andhari Tiger Reserve located?

Ans. Maharashtra

Q2. Which two protected areas make up Tadoba-Andhari Tiger Reserve?

Ans. Tadoba National Park and Andhari Wildlife Sanctuary

Q3. In which biogeographical province does Tadoba-Andhari Tiger Reserve fall?

Ans. Deccan Peninsula – Central Plateau

Source: OLT


BIMSTEC

29-03-2025

08:28 AM

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1 min read
BIMSTEC Blog Image

BIMSTEC Latest News

The Indian Prime Minister will visit Bangkok, Thailand, from April 3-4, 2025, to participate in the 6th BIMSTEC Summit and hold discussions with the Thai PM.

What is BIMSTEC?

  • BIMSTEC (Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation) is a regional multilateral organization that connects South Asia and Southeast Asia.
  • Established through the Bangkok Declaration in 1997, it promotes economic and social progress in the region.
  • Member Countries
    • South Asia: Bangladesh, Bhutan, India, Nepal, Sri Lanka.
    • Southeast Asia: Myanmar, Thailand.
  • Key Features
    • Bridges South and Southeast Asia, linking the Himalayan region with the Bay of Bengal.
    • Focuses on economic growth, trade, technology, energy, security, and connectivity.
    • Acts as an alternative to SAARC for regional cooperation.

Evolution of BIMSTEC

  • Initially formed as ‘BIST-EC’ (Bangladesh, India, Sri Lanka, and Thailand Economic Cooperation).
  • Renamed ‘BIMST-EC’ after Myanmar joined in 1997.
  • In 2004, Nepal and Bhutan joined, leading to the current name: BIMSTEC.

India’s Role in BIMSTEC

  • Leading Initiatives in trade, security, maritime cooperation, and climate action.
  • Key proponent of BIMSTEC Free Trade Agreement to enhance regional trade integration.
  • Advocates for stronger physical and digital connectivity between BIMSTEC nations.

India’s Strategic Vision in BIMSTEC

  • Neighbourhood First Policy: Prioritising economic and security ties with South Asian neighbors.
  • Act East Policy: Strengthening engagements with ASEAN and Southeast Asia.
  • MAHASAGAR Vision: Enhancing India’s role in global maritime security and economic growth.
  • This visit marks India’s continued commitment to its ‘Neighbourhood First’ and ‘Act East’ policies, as well as its MAHASAGAR Vision (Mutual and Holistic Advancement for Security and Growth Across Regions).

BIMSTEC FAQs

Q1. What is BIMSTEC?
Ans. BIMSTEC is a regional organisation comprising Bangladesh, India, Myanmar, Sri Lanka, Thailand, Nepal, and Bhutan, aimed at economic and technical cooperation.

Q2. When was BIMSTEC established?
Ans. BIMSTEC was established on June 6, 1997, through the Bangkok Declaration.

Q3. What are the key sectors of BIMSTEC cooperation?
Ans. BIMSTEC focuses on 14 key sectors, including trade, connectivity, energy, counterterrorism, climate change, and technology.

Q4. Where is the BIMSTEC Secretariat located?
Ans. The BIMSTEC Secretariat is headquartered in Dhaka, Bangladesh.

Source: IE