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  • [pib] Cu-Phen Metallo-Nanozymes and its Applications

    Why in the News?

    Researchers from the CSIR-Central Leather Research Institute (CLRI), Chennai has developed a new nanozyme, Cu-Phen, using a catalyst-by-design strategy. A nanozyme is a type of synthetic enzyme made from nanomaterials (extremely tiny particles) that can mimic the function of natural enzymes in biological systems.

    About the Metallo-Nanozymes 

    • Cu-Phen (Copper-Phenylalanine) is a type of metallo-nanozyme developed by Indian researchers.
    • It is a synthetic enzyme that mimics the functions of natural enzymes in the body, particularly in controlling the flow of energy at the cellular level.
    • It is made by combining copper ions (Cu²⁺) with phenylalanine, an amino acid, using a special design method called “catalyst-by-design”.
    • It forms a self-assembled nano-structure with a well-defined active site, which is where the enzyme’s function occurs.
    • This structure helps Cu-Phen control the electron transfer process, which is important for many biological functions.
    • Unlike traditional nanozymes, which often have poorly defined active sites, Cu-Phen has a precisely structured active site, allowing it to work more efficiently like natural enzymes in the body.
    • Cu-Phen interacts with cytochrome c, a protein that plays a key role in the electron transport chain, which is part of how our body generates energy.
    • It helps reduce oxygen to water without producing harmful substances called reactive oxygen species (ROS), which can damage cells.

    Potential Applications

    • Cu-Phen could be used to make energy systems more efficient, like in bioenergy (energy from living things), by mimicking natural energy-making processes.
    • It could help treat diseases like neurodegenerative diseases and cancer by controlling energy production in cells and reducing harmful effects on the body.
    • These nanozymes can help clean water and make energy systems work better, while reducing pollution and harmful by-products.
    • Cu-Phen can also be used in factories to help make useful products like medicines and chemicals by working like artificial enzymes.
    • This new nanozyme is a step forward in creating artificial enzymes that could be used in many areas like medicine, energy, and manufacturing.
    [UPSC 2022] Consider the following statements :

    1. Other than those made by humans, nanoparticles do not exist in nature.

    2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.

    3. Nanoparticles of some commercial products which enter the environment are unsafe for humans.

    Which of the statements given above is/are correct ?

    (a) 1 only (b) 3 only (c) 1 and 2 (d) 2 and 3

     

  • What are Mesoscale Convective System (MCS)?

    Why in the News?

    A recent study in Nature Geoscience suggests that soil moisture levels could help predict severe thunderstorms, like mesoscale convective systems (MCSs), especially in regions like India.

    About Mesoscale Convective Systems (MCS):

    • MCSs are larger than individual thunderstorms but smaller than larger weather systems like cyclones.
    • They typically cover areas between 100 to 1,000 km in diameter.
    • They form when warm, moist air rises, creating storms that feed off each other, growing in size and intensity as they move across the region.
    • They can cause flash floods, damaging winds, and severe thunderstorms, and are often responsible for large-scale weather events.
    • In tropical regions, MCSs account for 50 to 90 % of total rainfall, making them a major cause of severe weather-related damage.
    • A notable example is the March 2024 thunderstorm in West Bengal, which caused significant property damage and loss of life.

    Soil Moisture’s Role in MCS as per the Study:

    • Shifts in soil moisture can be detected two to five days before the formation of storms, providing critical lead time for early warnings in vulnerable regions.
    • Contrasting soil moisture levels over large areas (hundreds of kilometers) lead to changes in atmospheric conditions, including A notable example is the March 2024 thunderstorm in West Bengal, which caused significant property damage and loss of life.
    • Larger contrasts in moisture content between dry and wet regions cause greater temperature differences, which in turn lead to changes in wind direction and speed.
    • These variations contribute to turbulence, making storms more intense and spreading rainfall over a wider area.
    [UPSC 2013] During a thunderstorm, the thunder in the skies is produced by the

    1. meeting of cumulonimbus clouds in the sky 2. lightning that separates the nimbus clouds 3. violent upward movement of air and water particles

    Select the correct answer using the codes given below:

    (a) 1 only (b) 2 and 3 (c) 1 and 3 (d) None of the above produces the thunder

     

  • The crisis in India’s cotton production, and what can help

    Why in the News?

    India’s cotton production has dropped by 25% over the last 10 years because of the pink bollworm. Some seed companies have created new genetically modified cotton varieties that can resist this pest, but government rules are delaying their approval and use.

    Why has cotton output fallen despite Bt cotton’s earlier success?

    • Resistance Development in Pests: The pink bollworm (PBW), a monophagous pest, developed resistance to Bt cotton toxins (cry1Ac and cry2Ab) over time. Eg: A study published in Nature showed PBW resistance by 2014, just 12 years after Bt cotton’s introduction.
    • Pest Adaptability and Short Life Cycle: PBW’s short life cycle (25–35 days) allows multiple generations in one crop season, accelerating resistance buildup. Eg: In central India, PBW reached economic threshold levels by 2014, impacting yields.
    • Yield Stagnation and Decline: The national average lint yield rose to 566 kg/ha in 2013–14 but has fallen to around 436–437 kg/ha in recent years. Eg: This drop mirrors increased pest pressure and reduced effectiveness of Bt technology.
    • Increased Import Dependence: Falling domestic production has led to India importing more cotton than it exports. Eg: In 2024–25, imports are projected at 30 lakh bales vs exports of 17 lakh bales.
    • Lack of New GM Approvals: Regulatory and political hurdles have stalled the approval of next-gen GM cotton hybrids resistant to PBW. Eg: No new GM cotton hybrid has been commercialised since Bollgard-II in 2006.

    How has the pink bollworm turned India into a net cotton importer?

    • Destruction of Cotton Bolls and Lint Quality: PBW larvae bore into cotton bolls, feeding on seeds and lint, reducing both yield and fibre quality. Eg: This led to a production drop from 398 lakh bales (2013–14) to just 294 lakh bales (2024–25 projected) — the lowest since 2008–09.
    • Resistance to Bt Cotton: PBW developed resistance to the Bt toxins (cry1Ac and cry2Ab) used in GM cotton, making current hybrids ineffective. Eg: Resistance was first noted in central India around 2014, eventually spreading to southern and northern zones.
    • Decline in Exports, Rise in Imports: As production fell and quality declined, exports dropped and imports surged. Eg: In 2024–25, India is expected to import 30 lakh bales but export only 17 lakh bales, reversing its earlier status as a net exporter.

    Which new genetic technologies are Indian seed companies using to combat PBW resistance in cotton crops?

    • Introduction of Novel Bt Genes: Companies are using Bt genes not previously deployed in India to overcome existing PBW resistance. Eg: Bioseed Research India is conducting trials with its ‘cry8Ea1’ gene-based hybrid under the proprietary BioCotX24A1 event.
    • Use of Synthetic Bt Genes: Synthetic versions of Bt genes are engineered to enhance toxicity and overcome pest resistance. Eg: Rasi Seeds has developed hybrids expressing a synthetic cry1c gene for improved resistance to PBW.
    • Deployment of Chimeric Bt Genes: Chimeric genes combine segments of multiple Bt genes to create a novel protein with broader insecticidal action.Eg: Ankur Seeds, in collaboration with NBRI, is trialing cotton hybrids using a chimeric Bt protein from Event 519.

    When did the pink bollworm start crossing the economic threshold level in various cotton-growing zones of India?

    • Central Zone (Maharashtra, Gujarat, Madhya Pradesh): PBW crossed the ETL around 2014, marking the beginning of widespread yield loss in the heartland of cotton production. Eg: Farmers in Maharashtra began reporting severe PBW damage post-2014 despite using Bt cotton.
    • Southern Zone (Telangana, Andhra Pradesh, Karnataka, Tamil Nadu): The pest breached the ETL by 2017, affecting the second major cotton belt in the country. Eg: Telangana experienced major crop losses during the 2017–18 season due to PBW infestation.
    • Northern Zone (Punjab, Haryana, Rajasthan): PBW reached ETL in the northern states by 2021, completing its spread across all major cotton-growing regions. Eg: In 2021, Haryana reported pink bollworm infestation even in previously unaffected areas.

    How are regulatory hurdles affecting the commercialisation of new GM cotton hybrids in India?

    • Lengthy Approval Process: Multi-stage field trials (event selection, BRL-1, BRL-2) take years before commercial approval is granted. Eg: Bioseed’s ‘cry8Ea1’ GM cotton is still in BRL-1 trial phase, needing further years of testing before release.
    • Lack of New GM Approvals Since 2006: No new GM cotton hybrid has been approved for commercial cultivation since Monsanto’s Bollgard-II in 2006. Eg: Despite several companies developing PBW-resistant varieties, commercialisation remains stalled.
    • Opposition from States and Activist Groups: State-level permissions and activist resistance delay or block field trials, affecting research and rollout. Eg: Rasi Seeds and Ankur Seeds await approvals for first-year trials amid regulatory scrutiny and local objections.

    What advantages does India have in cotton production and trade?

    • Favorable Climate and Large Cotton-Growing Area: India has a vast area suitable for cotton cultivation, with diverse agro-climatic zones supporting long growing seasons. Eg: India is the world’s largest cotton producer, with major states like Maharashtra, Gujarat, and Telangana contributing significantly.
    • Low Export Duties Compared to Other Countries: India faces lower tariffs on its textile exports in key markets like the US, making its products more competitive. Eg: Under the US’s “reciprocal tariff” policy, Indian textile exports face only 27% duty, while China’s face 54% and Bangladesh’s 37%.

    Way forward: 

    • Accelerate Regulatory Approvals for Next-Gen GM Cotton: The government should streamline and fast-track the approval process for new GM hybrids with novel, synthetic, or chimeric Bt genes to restore cotton productivity and pest control efficacy. Eg: Timely clearance of Bioseed’s cry8Ea1 and Rasi’s synthetic cry1c cotton hybrids can help tackle PBW resistance.
    • Promote Integrated Pest Management (IPM) and Farmer Awareness: Combine genetic solutions with IPM strategies—crop rotation, pheromone traps, and timely pesticide use—to delay resistance buildup. Launch nationwide farmer education programs on early detection and field hygiene. Eg: Maharashtra’s IPM pilot schemes have shown promise in reducing PBW infestations when practiced consistently.

    Mains PYQ:

    [UPSC 2021] What are the present challenges before crop diversification? How do emerging technologies provide an opportunity for crop diversification?

    Linkage:  Vulnerability of a monoculture system relying heavily on Bt cotton, crop diversification could be a strategy to reduce dependence on a single crop and potentially break pest cycles, although the article focuses on technological solutions within cotton itself.

  • How the police view custodial torture in India

    Why in the News?

    The data shows that many police officers accept using forceful methods like shouting, threatening, slapping, or even harsh physical torture during investigations, even for small crimes.

    How the police view custodial torture in India

    What proportion of police support violence against serious offenders for the greater good?

    • Majority Support Violence: 63% of police personnel believe it’s acceptable to use violence on serious offenders for the greater good of society. Eg: Officers may justify beating a suspected murderer if they believe it helps prevent future crimes.
    • Strong vs Moderate Support: Among those who agreed, 22% strongly agreed and 41% moderately agreed with using violence. Eg: Some officers might strongly feel torture is necessary in terrorism cases, while others may support limited force.
    • Opposition is Minor: Only 35% of police personnel opposed the idea of violence, showing that a minority disagrees with such practices. Eg: These officers might believe in legal methods like investigation and interrogation without physical harm.

    How does this infringe Fundamental Rights? 

    • Violation of Right to Life and Personal Liberty (Article 21): Coercive actions like custodial torture and third-degree methods breach the right to live with dignity. Eg: A suspect beaten during interrogation suffers physical and mental trauma without legal conviction.
    • Denial of Protection Against Self-Incrimination (Article 20(3)): Forcing suspects to confess under pressure or torture violates their right to remain silent during interrogation. Eg: A person forced to admit guilt in a theft case, even if innocent, due to police pressure.
    • Breach of Equality Before Law (Article 14): Targeting specific individuals like history-sheeters or the poor with harsh treatment undermines equal legal protection. Eg: Repeat offenders being tortured without due process, while others get fair legal treatment.

    Why do many police personnel justify torture in national security and serious crime cases?

    • Perceived Urgency in National Security Cases: Many police believe torture is necessary to extract crucial information in time-sensitive situations like terrorism. Eg: 42% of police personnel strongly supported torture during terrorism-related interrogations.
    • Belief in Strong Punishment for Heinous Crimes: Officers feel that serious crimes such as rape and murder deserve harsher treatment to deliver justice quickly. Eg: 34% of police strongly supported torture in cases involving rape and serious violent crimes.
    • Assumption that Certain Suspects Are Repeat Offenders: There’s a mindset that “history-sheeters” don’t respond to normal interrogation, justifying harsher methods. Eg: 28% of police strongly agreed that torture is justified for repeat or habitual offenders.

    What are the coercive methods that police frequently justify during interrogations, even for minor offenses?

    • Verbal Abuse and Threats: A large portion of police personnel find it acceptable to verbally abuse or threaten suspects in minor crimes like theft. Eg: 49% said such verbal abuse and threats are justified even in petty cases.
    • Slapping Suspects: Physical force such as slapping is often seen as a mild and acceptable tactic. Eg: 32% of police justified slapping suspects during minor offence investigations.
    • Use of Third-Degree Methods: Even for minor crimes, some support more extreme measures like third-degree torture to get confessions. Eg: 9% of personnel justified using third-degree methods in minor cases.
    • Threats as Routine Practice: Many police reported that threats are a frequent part of their interrogation techniques. Eg: 26% said threats are used “often” during investigations; 34% said they occur “sometimes.”
    • Light Force Considered Normal: Slapping or applying light physical force is not seen as excessive by a significant number of police officers. Eg: 18% admitted it’s commonly done, and another 28% said it happens occasionally.

    What are the steps taken by the Indian government? 

    • Implementation of Guidelines by Supreme Court: The government follows the D.K. Basu vs. State of West Bengal (1996) guidelines issued by the Supreme Court to prevent custodial violence. Eg: Police are required to inform relatives of an arrest and maintain arrest records.
    • Enactment of Human Rights Protection Laws: The government established legal bodies to monitor human rights violations. Eg: The Protection of Human Rights Act, 1993 led to the creation of the National Human Rights Commission (NHRC).
    • Police Reforms and Training Programs: Reforms aim to modernize police functioning and encourage ethical conduct through training. Eg: The National Police Mission promotes citizen-centric policing and sensitization on human rights.

    Way forward: 

    • Independent Investigation and Accountability Mechanisms: Establish robust, independent bodies at the state level to investigate complaints of custodial violence and misconduct. Eg: Set up Police Complaints Authorities (PCA) with judicial oversight to ensure fair and transparent inquiries into custodial torture.
    • Comprehensive Sensitisation and Legal Training: Mandate regular training for police personnel on human rights, ethical investigation practices, and legal procedures. Eg: Include modules on constitutional rights, custodial safeguards, and mental health awareness in police academies and refresher courses.

    Mains PYQ:

    [UPSC 2019] The police reforms in India have been left halfway due to lack of political will. Critically analyse.

    Linkage: The ongoing justification of coercive tactics, even in minor crimes, shows ineffective implementation of police reforms in India. It remains incomplete, largely due to a lack of political will, weak implementation, and cultural resistance within the force.

  • [pib] 10 years of the Pradhan Mantri MUDRA Yojana (PMMY)

    Why in the News?

    April 8, 2025, marks the 10th anniversary of Pradhan Mantri MUDRA Yojana (PMMY), launched to fund micro and small enterprises.

    About the Pradhan Mantri MUDRA Yojana (PMMY)

    • The PMMY, launched in 2015 is a Central Sector Scheme designed to provide financial support to non-corporate, non-farm small and micro-entrepreneurs previously excluded from the formal financial system.
    • MUDRA stands for Micro Units Development & Refinance Agency Ltd., a financial institution established to support the development and refinancing of micro-enterprises
    • It aims to foster grassroots entrepreneurship and remove barriers to accessing loans, especially for businesses that lack collateral.

    Loan Categories:

      1. Shishu: Loans up to ₹50,000 for new or small businesses.
      2. Kishore: Loans ranging from ₹50,000 to ₹5 lakh for growing enterprises.
      3. Tarun: Loans from ₹5 lakh to ₹10 lakh for more established businesses with greater capital needs.
      4. TarunPlus: Loan limit up to ₹20 lakh for more established and larger businesses (since July 2024).

    Key Features:

    • Collateral-Free Loans: PMMY loans do not require any collateral, making them accessible to those without assets.
    • Member Lending Institutions (MLIs): These include Public Sector Banks, Private Sector Banks, Regional Rural Banks, Micro Finance Institutions (MFIs), Non-Banking Financial Companies (NBFCs), and Small Finance Banks (SFBs).
    • Credit Guarantee: Loans are backed by the Credit Guarantee Fund for Micro Units (CGFMU), which was established in 2015 to provide security to financial institutions offering loans under PMMY.
    • MUDRA Card: A MUDRA card is issued to manage the working capital portion of the loan, providing convenience to the borrower.

    MUDRA 2.0:

    • MUDRA 2.0 (launched in Union Budget 2024) is an upgraded version of the original PMMY, designed to extend its outreach, particularly in rural and semi-urban areas.
    • This version introduces additional services such as financial literacy programs, business mentorship, and comprehensive business support, aiming to improve the overall impact of the scheme.
    • Enhanced Credit Guarantee Scheme (ECGS) is a new feature introduced to encourage more lending to small and microenterprises by reducing the risk for financial institutions.

    Successes of PMMY:

    • Massive Loan Disbursement: Over ₹32.61 lakh crore disbursed through 52 crore loans, benefitting millions.
    • Inclusivity: 69% of loans are held by women, 51% by SC/ST and OBC entrepreneurs.
    • Job Creation: Promoted self-employment and business growth in rural and semi-urban areas.
    • MSME Credit Growth: Lending increased from ₹8.51 lakh crore in FY14 to ₹27.25 lakh crore in FY24.
    • International Recognition: Praised by IMF for expanding financial access, especially for women-led businesses.

    Challenges:

    • Increase in NPAs: Rising defaults due to lack of collateral.
    • Disbursement Delays: Some banks face challenges in meeting loan targets.
    • Fraud Risk: Collateral-free loans are susceptible to misuse and fraud.
    • Larger Loan Limits: Higher limits under TarunPlus raise default risks for banks.
    • Default Risk: Some borrowers exploit the system through “evergreening” tactics.
    [UPSC 2016] Pradhan Mantri MUDRA Yojana is aimed at

    (a) bringing small entrepreneurs into the formal financial system.

    (b) providing loans to poor farmers for cultivating particular crops.

    (c) providing pensions to old and destitute persons.

    (d) funding the voluntary organizations involved in the promotion of skill development and employment generation.

     

  • Palna Scheme under Mission Shakti

    Why in the News?

    The Ministry of Women and Child Development has informed that 1,761 Anganwadi-cum-Creches are operational across the country under the Palna Scheme.

    About the Palna Scheme

    • Launched to address childcare needs for working mothers, the Palna Scheme provides day-care facilities for children aged 6 months to 6 years.
    • In 2022, the National Creche Scheme was reorganized and renamed Palna Scheme under the Samarthya sub-scheme of Mission Shakti.
    • It is a Centrally Sponsored Scheme, with a 60:40 funding ratio between the Centre and State/UT Governments (90:10 for North-Eastern and Special Category States). UTs without legislature receive 100% funding.
    • Target Audience: Provides services for all mothers (irrespective of their employment status), offering a safe, hygienic, and supportive environment for children.
    • Creche Services: Includes day-care, early stimulation, preschool education, nutrition, health check-ups, and immunization support.

    Other Creche Schemes:

    • Standalone Creches: Independent creches are providing care for children aged 6 months to 6 years. They include provisions for one Creche Worker and one Creche Helper. Services include sleeping arrangements, health monitoring, and education.
    • Anganwadi-cum-Creches (AWCC): A key component of Palna Scheme, these creches combine Anganwadi services with daycare for working mothers.
      • Staffing: Includes an Anganwadi Worker, Helper, and Creche Worker and Helper.
      • Target: Establish 17,000 new AWCCs by 2024-25, with 11,395 already approved as of March 2025.
      • Objective: To provide childcare in rural and semi-urban areas, ensuring last-mile delivery.
      • Honorarium: ₹6,500 for Creche Workers in standalone crèches and ₹5,500 for AWCC Workers.

    About Mission Shakti

    • Mission Shakti is the Ministry of Women and Child Development’s flagship scheme, designed to strengthen women’s safety, security, and empowerment in India. 
    • The scheme supports women-led development by addressing issues affecting women across their life-cycle.
    • Components:
      1. Sambal: Focuses on women’s safety, with initiatives like the One Stop Centre (OSC), Women Helpline (WHL), and Beti Bachao Beti Padhao (BBBP).
      2. Samarthya: Empowering women through sub-schemes like Ujjwala, Swadhar Greh, and the Palna Scheme. It integrates support for childcare and maternal health.
      3. Gap Funding for Economic Empowerment: A new initiative to support financial gaps in women’s enterprises.
    [UPSC 2019] With reference to the Maternity Benefit Amendment Act, 2017, consider the following statements:

    1. Pregnant women are entitled for three months pre-delivery and three months post-delivery paid leave

    2. This act applies to all organisations with 20 or more employees

    3. It has made it mandatory for every organisation with 50 or more employees to have a crèche.

    Which of the given statements is/are correct?

    (a) 1 and 2 only (b) 2 only (c) 3 only (d) 1, 2 and 3

     

  • Technology and Innovation Report, 2025

    Why in the News?

    The Technology and Innovation Report, 2025 was recently issued by United Nations Conference on Trade and Development (UNCTAD).

    About the Technology and Innovation Report

    • The report is released by the UN Conference on Trade and Development (UNCTAD).
    • It addresses critical issues related to science, technology, and innovation, with a particular focus on developing countries. The report emphasizes policy-relevant analysis and conclusions.
    • The theme for the 2025 edition is “Inclusive Artificial Intelligence for Development.”

    Key Highlights of the Report:

    • Global Highlights:
      • Developed countries lead in technology preparedness, but nations like China, India, and Brazil outperform their income levels.
      • AI market projected to reach USD 4.8 trillion by 2033, fuelling global digital transformation.
      • 100 companies, mostly in the U.S. and China, account for 40% of global corporate R&D spending.
      • AI will affect 40% of jobs globally, raising concerns over automation and job displacement.
      • U.S. leads in AI investment with USD 67 billion, followed by China (USD 7.8 billion) and India (USD 1.4 billion).
      • AI Governance Gap: 118 countries, mainly from the Global South, are absent from global AI governance discussions.
    • Indian Prospects:
      • India ranks 36th in the Readiness for Frontier Technologies Index in 2024, up from 48th in 2022. It ranks 10th globally with USD 1.4 billion in AI investments.
      • India has a talent pool of 13 million AI developers, contributing significantly to open-source platforms like GitHub.
      • The India AI Mission (2024) focuses on AI innovation through collaborations with the private sector and academia.
      • India leads in nanotechnology and has AI excellence centres like IIT Hyderabad and IIT Kharagpur.
    [UPSC 2019] The Global Competitiveness Report is published by the:

    (a) International Monetary Fund (b) United Nations Conference on Trade and Development (c) World Economic Forum (d) World bank

     

  • Hadean Protocrust

    Why in the News?

    A study from Macquarie University, Australia, suggests that plate tectonics may have started earlier than previously thought, with signs of it possibly existing in the Hadean protocrust even before the plates began to move.

    What is Hadean Protocrust?

    • The Hadean protocrust is the Earth’s first crust, formed within the first 200 million years of the planet’s creation.
    • During this time, the surface was mostly molten and constantly hit by space rocks, making it very hot and unstable.
    • Over time, parts of the molten surface began to cool and solidify, creating the first crust.

    Hadean Protocrust

    Back2Basics: Hadean Aeon

    • The Hadean Aeon is the earliest geological eon in Earth’s history, lasting from about 4.6 billion to 4 billion years ago.
    • The surface was incredibly hot and volcanic activity was widespread, often described as “hellish.”
    • It was followed by the Archean Eon (about 4 billion to 2.5 billion years ago), characterized by the formation of Earth’s first stable crust, the beginning of plate tectonics, and the earliest known forms of life.
    • As the surface cooled, the thick parts of the crust formed the first continents, which moved on the hot, semi-fluid layer beneath them called the asthenosphere.

    Key Findings of the Recent Study:

    • The researchers found that the chemical signatures linked to plate tectonics might have appeared earlier, even when the Earth’s crust was still forming in the Hadean protocrust.
    • This discovery suggests that early movements of the Earth’s crust, similar to plate tectonics, could have happened before plates began to move as we know them today.
    • The study used models and experiments to support these ideas, but further research is needed to confirm these findings.
    [UPSC 2013] Which of the following are responsible for bringing dynamic changes on the surface of the earth?

    1. Electromagnetic radiation 2. Geothermal energy 3. Gravitational force 4. Plate movements 5. Rotation of the earth 6. Revolution of the earth

    Which of the above are responsible for bringing dynamic changes on the surface of the earth?

    (a) 1 only (b) 2 and 3 only (c) 2, 4 and 6 only (d) 2 and 4 only

     

  • First photographic record of Woolly Flying Squirrel captured in Himachal

    Why in the News?

    The Himachal Pradesh Forest Department’s wildlife wing has captured the first photographic evidence of the elusive Woolly Flying Squirrel in the Miyar Valley, Lahaul and Spiti district.

    First photographic record of Woolly Flying Squirrel captured in Himachal

    About the Woolly Flying Squirrel:

    • The Woolly Flying Squirrel, scientifically known as Eupetaurus cinereus, is one of the rarest and least known mammals in Asia.
    • It is endemic to the northwestern Himalayas, primarily found in northern Pakistan and northwestern India.
    • It prefers to live in dry conifer woodlands within a fragmented habitat in a thin elevational band.
    • This species was long believed to be extinct until it was rediscovered in 1994, nearly seventy years after its last recorded sighting.
    • It is unique due to its ability to glide, much like other flying squirrels, as it has elastic membranes that connect its fore and hind legs.

    Physical features:

    • Its body is covered with dense, straight, silky hairs, with the dorsal pelage appearing blue-gray, while the underside is pale gray.
    • The squirrel also has creamy white hairs on its throat and ears, and dense black fur on the soles of its feet, with pinkish brown toe pads that are naked.

    Conservation Status:

    • Listed as ‘Endangered’ on the IUCN Red List.
    • NOT explicitly mentioned under the Wildlife (Protection) Act, 1972.

    Significance of the Rediscovery:

    • Its confirmed existence adds to the state’s mammal checklist, offering hope for its continued survival in this remote part of the Himalayas.
    • This discovery is important from a scientific perspective, as it marks the first time the elusive species has been documented in India since its rediscovery in 1994.
    [UPSC 2012] Consider the following:

    1. Black-necked crane 2. Cheetah 3. Flying squirrel 4. Snow leopard

    Which of the above are naturally found in India?

    (a) 1, 2 and 3 only (b) 1, 3 and 4 only (c) 2 and 4 only (d) 1, 2, 3 and 4

     

  • Ottawa Convention

    Why in the News?

    NATO members including Poland, Finland, and the three Baltic states (Estonia, Latvia, and Lithuania) have recently expressed intentions to withdraw from the Ottawa Convention.

    About the Ottawa Convention

    • The Ottawa Convention is an international treaty adopted in 1997 aimed at banning the use, production, stockpiling, and transfer of anti-personnel mines.
    • It is also known as the ‘Anti-Personnel Mine Ban Treaty.’
    • It specifically targets anti-personnel mines and EXCLUDES anti-vehicle mines, remote-controlled mines, and other types of munitions.
    • Signatories: 165 countries had joined by March 2025.
      • But major powers like the United States, China, Russia, India, and Israel have not signed.
    • Key Features: Signatories must destroy all stockpiled anti-personnel mines within 4 years of ratification, with some allowances for mines retained for training.

    Objectives of the Treaty

    • End Human Suffering: The primary goal is to end the human suffering caused by landmines.
    • Prevent Civilian Casualties: It seeks to prevent civilian casualties, especially long after conflicts have ended.
    • Rehabilitation and Restoration: The treaty also aims to assist in the rehabilitation of victims and the restoration of land previously mined for civilian use.

    Significance of the Convention

    • Victims’ Profile: According to the International Committee of the Red Cross (ICRC), more than 80% of mine victims are civilians.
    • Convention Provisions: The convention includes provisions to assist victims, many of whom suffer permanent disabilities such as loss of limbs.
    [UPSC 2015] Which among the following are Nuclear Weapons States as recognized by the Treaty on the Non-Proliferation of nuclear weapons, commonly known as Nuclear Non-Proliferation Treaty (NPT)?

    1. China 2. France 3. India 4. Israel 5. Pakistan

    (a) 1 and 2 only (b) 1, 3, 4 and 5 only (c) 2, 4 and 5 only (d) 1, 2, 3, 4 and 5