💥UPSC 2027,2028 Mentorship (April Batch) + Access XFactor Notes & Microthemes PDF

Type: Prelims Only

  • Wildlife Conservation Efforts

    Project RE-HAB

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Project RE-HAB

    Mains level: Man-animal conflict

    The forest authorities intend to mitigate human-elephant conflict by installing bee boxes along the periphery of the forest and the villages under the Project RE-HAB.

    On similar lines, try this PYQ:

    Q.The term ‘M-STrIPES’ is sometimes seen in the news in the context of:

    (a) Captive breeding of Wild Fauna

    (b) Maintenance of Tiger Reserves

    (c) Indigenous Satellite Navigation System

    (d) Security of National Highways

    Project RE-HAB

    • Project RE-HAB stands for Reducing Elephant-Human Attacks using Bees. It is an initiative of the Khadi and Village Industries Commission (KVIC).
    • It intends to create “bee fences” to thwart elephant attacks in human habitations using honeybees.
    • Bee boxes have been placed on the ground as well as hung from the trees.
    • The boxes are connected with a string so that when elephants attempt to pass through, a tug causes the bees to swarm the elephant herds and dissuade them from progressing further.
    • This idea stems from the elephants’ proven fear of the bees.

    Areas covered by the project

    • The pilot project was launched at four locations around Chelur village in the Kodagu district of Karnataka.
    • These spots are located on the periphery of Nagarahole National Park and Tiger Reserve, known conflict zones.

    Benefits offered

    • The biggest advantage of Project RE-HAB is that it dissuades elephants without causing any harm to them.
    • It is extremely cost-effective as compared to various other measures such as digging trenches or erecting fences.
  • Road and Highway Safety – National Road Safety Policy, Good Samaritans, etc.

    Places in news: Baralacha Pass

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Baralacha Pass

    Mains level: Himalayan passes and tunnels of strategic importance

    For the first time ever, the Border Roads Organisation (BRO) has started work on reopening the crucial Baralacha Pass in Himachal Pradesh much before schedule to restore connectivity to Leh in Ladakh.

    Note all the Himalayan passes from their N-S sequences.

    Baralacha Pass

    • Bara-lacha la also known as Bara-lacha Pass is a high mountain pass in the Zanskar range connecting the Lahaul district in Himachal Pradesh to Leh district in Ladakh.
    • It is situated along the Leh–Manali Highway.
    • The Bhaga river, a tributary of the Chenab river, originates from Surya Taal lake, which is situated a few kilometres from the pass towards Manali.
    • The native name of Chenab “Chandrabhaga” represents the union of Chandra and Bhaga rivers downstream.
    • The pass also acts as a water-divide between the Bhaga River and the Yunan River.

    Why is this pass so important?

    • The BRO had kept crucial passes open for a longer duration to enable the Army to undertake advanced winter stocking for the thousands of additional troops deployed in Ladakh.
    • The team has traversed a total distance of 20 km in super high-altitude conditions scrupulously crossing the Baralacha La in the Zanskar range on foot amidst sub-zero freezing conditions.
    • Frequent avalanches and slides with 15 to 20 feet of snow accumulation.
  • e-Commerce: The New Boom

    Draft E-Commerce Policy

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Not Much

    Mains level: E-commerce regulation in India

    The Department for Promotion of Industry and Internal Trade (DPIIT) will soon come out with a common acceptable draft e-commerce policy.

    Earlier policy

    • The previous draft in July last year had proposed a regulator, an e-commerce law, periodic audit of companies that store or mirror Indian users’ data overseas.
    • The latest draft calls for streamlining of regulatory processes to ease the burden of compliance for activities related to e-commerce and regulations for data that will provide for sharing mechanism.

    What are the provisions of the new law?

    Data Usage

    • According to a revised draft, the government would lay down principles for the usage of data for industrial development, where such norms do not already exist.
    • They aim to put in place safeguards to prevent misuse and access of data by unauthorized persons.
    • Such safeguards may include regulating the cross-border flow of data pertaining to Indians and transactions taking place in India and the requirement of adequacy audits to be carried out by Indian firms.
    • As per the recent draft policy, violation of safeguards shall be viewed seriously and attract heavy penalties.

    Regulation, exports

    • Conformity assessment procedures will be put in place to verify that goods and services sold on e-commerce platforms meet required standards and technical regulations.
    • The government shall collect information from e-commerce platforms to aid it in making necessary decisions.
    • In order to ensure that e-commerce is not used to defraud customers, registration with an authority identified by the Government shall be mandatory.
    • The policy shall bring e-commerce exports on par with non-e-commerce exports by enabling online grant of drawbacks, advance authorization and GST refund.

    Consumer protection

    • As per the draft, e-commerce operators must ensure to bring out clear and transparent policies on discounts, including the basis of discount rates funded by platforms.
    • Such a move aims to ensure fair and equal treatment.
    • It said consumers have a right to be made aware of all relevant details about the goods and services offered for sale including country of origin, value addition in India etc.
    • In case the seller fails to establish the genuineness of his products within a reasonable time frame, the e-commerce platform shall delist the seller.
  • Historical and Archaeological Findings in News

    Govt. reconstitutes panel for studying mythical Sarasvati River

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Rigvedic rivers

    Mains level: Not Much

    The Centre has reconstituted an advisory committee to chalk out a plan for studying the mythical Sarasvati River for the next two years after the earlier panel’s term ended in 2019.

    Do you know?

    Rigveda describes India as a land of Sapta Sindhavah.

    There is a verse in Nadistuti sukta of Rigveda , hymn of praise of rivers which mentions the following 10 rivers: Ganga, Yamuna, Sarasvati, Sutudri, Parusni, Asikni, Marudvrdha , Vitasta , Arjikiya , Susoma.

    The Shutudri was Sutlej, Parushni was Ravi, Asikni was Chenab and Vitasta was Jhelum.

    Sarasvati River

    • The Sarasvati River is an extinct river mentioned in the Rig Veda and later Vedic and post-Vedic texts.
    • As a physical river, it is described as a small river ending in “a terminal lake (Samudra).
    • As the goddess Sarasvati, the main referent for the term “Sarasvati” which developed into an independent identity in post-Vedic times, she is described as a powerful river and mighty flood.
    • The Sarasvati is also considered by Hindus to exist in a metaphysical form, in which it formed a confluence with the sacred rivers Ganges and Yamuna, at the Triveni Sangam.

    Vedic reference of the river

    • Rigvedic and later Vedic texts have been used to propose identification with present-day rivers, or ancient riverbeds.
    • The Nadistuti hymn in the Rigveda (10.75) mentions the Sarasvati between the Yamuna in the east and the Sutlej in the west.
    • Later Vedic texts like the Tandya and Jaiminiya Brahmanas, as well as the Mahabharata, mention that the Sarasvati dried up in a desert.

    What led to its extinction?

    • Since the late 19th-century, scholars have proposed to identify the Rig Vedic Saraswati river with the Ghaggar-Hakra river system.
    • This flows through northwestern India and eastern Pakistan, between the Yamuna and the Sutlej.
    • Recent geophysical research suggests that the Ghaggar-Hakra system was glacier-fed until 8,000 years ago, and then became a system of monsoon-fed rivers.
    • ISRO has observed that major Indus Valley Civilization sites at Kalibangan (Rajasthan), Banawali and Rakhigarhi (Haryana), Dholavira and Lothal (Gujarat) lay along this course.
    • The Indus Valley Civilisation may have declined as a result of climatic change when the monsoons that fed the rivers diminished at around the time civilisation diminished some 4,000 years ago.
  • Capital Markets: Challenges and Developments

    What are AT1 Bonds?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: AT1 Bonds

    Mains level: Not Much

    The decision of the Securities and Exchange Board of India (SEBI) to slap restrictions on mutual fund (MF) investments in additional tier-1 (AT1) bonds has raised a storm in the MF and banking sectors.

    What are AT1 Bonds?

    • AT1 Bonds stand for additional tier-1 bonds. These are unsecured bonds that have perpetual tenure. In other words, the bonds have no maturity date.
    • They have a call option, which can be used by the banks to buy these bonds back from investors.
    • These bonds are typically used by banks to bolster their core or tier-1 capital.
    • AT1 bonds are subordinate to all other debt and only senior to common equity.
    • Mutual funds (MFs) are among the largest investors in perpetual debt instruments and hold over Rs 35,000 crore of the outstanding additional tier-I bond issuances of Rs 90,000 crore.

    What action has been taken by the Sebi recently and why?

    • In a recent circular, the Sebi told mutual funds to value these perpetual bonds as a 100-year instrument.
    • This essentially means MFs have to make the assumption that these bonds would be redeemed in 100 years.
    • The regulator also asked MFs to limit the ownership of the bonds to 10 per cent of the assets of a scheme.
    • According to the Sebi, these instruments could be riskier than other debt instruments.

    Try this PYQ:

    Consider the following statements:

    1. The Reserve Bank of India manages and services the Government of India Securities but not any State Government Securities.
    2. Treasury bills are issued by the Government of India and there are no treasury bills issued by the State Governments.
    3. Treasury bills offer are issued at a discount from the par value.

    Which of the statements given above is/are correct?

    (a) 1 and 2 only

    (b) 3 Only

    (c) 2 and 3 only

    (d) 1, 2 and 3

    How MFs will be affected?

    • Typically, MFs have treated the date of the call option on AT1 bonds as the maturity date.
    • Now, if these bonds are treated as 100-year bonds, it raises the risk in these bonds as they become ultra long-term.
    • This could also lead to volatility in the prices of these bonds as the risk increases the yields on these bonds rises.
    • Bond yields and bond prices move in opposite directions and therefore, the higher yield will drive down the price of the bond, which in turn will lead to a decrease in the net asset value of MF schemes holding these bonds.
    • Moreover, these bonds are not liquid and it will be difficult for MFs to sell these to meet redemption pressure.

    What’s the impact on banks?

    • AT1 bonds have emerged as the capital instrument of choice for state banks as they strive to shore up capital ratios.
    • If there are restrictions on investments by mutual funds in such bonds, banks will find it tough to raise capital at a time when they need funds in the wake of the soaring bad assets.
    • A major chunk of AT1 bonds is bought by mutual funds.

    Why has the Finance Ministry asked Sebi to review the decision?

    • The FM has sought withdrawal of valuation norms for AT1 bonds as it might lead to mutual funds making losses and exiting from these bonds, affecting capital raising plans of PSU banks.
    • The government doesn’t want a disruption in the fund mobilization exercise of banks at a time when two PSU banks are on the privatization block.
    • Banks are yet to receive the proposed capital injection in FY21 although they will need more capital to face the asset-quality challenges in the foreseeable future.
    • Fitch’s own estimate pegs the sector’s capital requirement between $15 billion-58 billion under various stress scenarios for the next two years, of which state banks account for the bulk.
  • International Space Agencies – Missions and Discoveries

    Martian ‘Blueberries’

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Martian blueberries

    Mains level: Mars mission worldwide and their success

    In 2004, NASA’s Mars exploration rover ‘Opportunity’ found several small spheres on the planet, informally named Martian blueberries which find a resemblance to the similar formation in India’s Kutch region.

    There have been several missions to the red planet this year. Make a note of all of them.

    Martian blueberries

    • Opportunity’s mini spectrometers studied mineralogy and noted they were made of iron oxide compounds called haematites.
    • This caused excitement, as the presence of haematites suggests that there was water present on Mars.
    • The widely accepted formation mechanism of hematite concretion [hard solid mass] is precipitation from aqueous fluids.
    • Hematite is known to form in oxidizing environments hence it can be inferred that water must have played a crucial role in the formation of grey hematite on Mars.

    What makes them so special?

    • Indian researchers have been studying hematite concretions in Kutch called the Jhuran formation.
    • These formations are 145 and 201 million years old.
    • Detailed geochemistry and spectroscopic investigations of the haematite concretions in this area revealed that they resemble the ones on Mars.
    • They have similar morphology – spherical, often doublet and triplet – and similar mineralogy – a mixture of haematite and goethite.
    • Hence, several types of research have shown that the Kutch area is a potential Martian analogue locality.
  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    Raman Thermometry check on health of power lines

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Raman Thermometry

    Mains level: Discom issues

    Researchers at IIT Madras have demonstrated that by using Raman thermometry on fibre optic cables, they can achieve the monitoring of power transmission cables.

    What is Raman Thermometry?

    • Raman spectroscopy is well known as an analytical method for identifying chemical compounds and characterizing the chemical bonding and solid-state structure of materials.
    • Perhaps less well known is the fact that one can use Raman spectroscopy to determine the temperature of the material being analyzed.

    For that, we need to get familiarized with Raman Effect

    • India’s first and so far only Nobel laureate in physics, C.V. Raman, won the prize for his discovery of the Raman Effect.
    • This consisted of experimental observations on the scattering of light.
    • In the Raman Effect, when light is scattered off an object, say a molecule, two bands are observed, with a higher and lower frequency than the original light, called the Stokes and anti-Stokes bands, respectively.
    • By studying the relative intensity of the two bands, it is possible to estimate the temperature of the object that scattered the light.
    • The anti-Stokes component of Raman scattering is strongly dependent on the temperature that the material is subjected to.

    Thus, by measuring the intensity of the anti-Stokes scattered light we can estimate the temperature. This is Raman thermometry.

    Try this PYQ:

    Q.Which Indian astrophysicist and Nobel laureate predicted rapidly rotating stars emit polarized light?

    (a) Subrahmanyan Chandrasekhar

    (b) CV Raman

    (c) Ramanujan

    (d) Amartya Sen

    What has IITM achieved?

    • The temperature measurement was performed in not just one location, but in a distributed manner using an optical fibre.
    • To achieve this, a pulse of light was launched into the optical fibre and the backscattered radiation was observed.
    • The time of flight of the backscattered radiation provided an estimate of the distance from which the light is backscattered.
    • This can go up to tens of kilometres. This technique is married to Raman thermometry to get the results for actual measurements over tens of kilometres.

    What makes this experiment special?

    • The distribution Sector considered the weakest link in the entire power sector.
    • We are much aware of Transmission and Distribution loss that is incurred to our DISCOMS.
    • This IITM technology helps analyze transmission efficiencies in a better way.
    • The present method devised by the team is both economical and provides real-time information.
  • Innovations in Biotechnology and Medical Sciences

    Genetics of Eye Color

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Human eye and the applied genetics

    Mains level: NA

    Researchers from London have found that eye colour in Asians with different shades of brown is genetically similar to eye colour in Europeans ranging from dark brown to light blue.

    Human Eye Colour

    • Human eye colour ranges from black, brown to blue, green, and even red.
    • Eye colour is primarily determined by melanin abundance within the iris pigment epithelium, which is greater in brown than in blue eyes.
    • There are two forms of melanin – eumelanin and pheomelanin – and the ratio of the two within the iris as well as light absorption and scattering by extracellular components are additional factors that give irises their colour.
    • Absolute melanin quantity and the eumelanin–pheomelanin ratio is higher in brown irises, while blue or green irises have very little of both pigments and relatively more pheomelanin.

    Try this PYQ:

    Q.Recently, LASIK (Lasser Assisted In Situ Keratomileusis) procedure is being made popular for vision correction. Which one of the following statements in this context is not correct?

    (a) LASIK procedure is used to correct refractive errors of the eye

    (b) It is a procedure that permanently changes the shapes of the cornea

    (c) It reduces a person’s dependence on glasses or contact lenses

    (d) It is a procedure that can be done on the person of any age

    What has the research found?

    • Previously a dozen genes (mainly HERC2 and OCA2) were found to influence eye colour.
    • The researchers have now identified 50 new genes for eye colour.
    • Genetic analysis of nearly 0.2 million people across Europe and Asia helped the researchers to identify the new genes.
    • The findings collectively explain over 53% of eye colour variation using common single-nucleotide polymorphisms.

    Outcome of the research

    • Overall, the study outcomes demonstrate that the genetic complexity of human eye colour considerably exceeds previous knowledge and expectations.
    • These findings will help improve our understanding of eye diseases such as pigmentary glaucoma and ocular albinism where pigment levels play a role.
  • Air Pollution

    Curbing Benzene Emission

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Benzene pollution

    Mains level: Not Much

    A joint committee appointed by the National Green Tribunal (NGT) to study air pollution in Kerala has pointed out that petrol refuelling stations were a major source of benzene emissions and volatile organic compounds (VOCs).

    Why such a move?

    • Benzene is a major constituent of evaporative emission due to its high volatility.

    Try this PYQ:

    Q.Consider the following:

    1. Carbon monoxide
    2. Methane
    3. Ozone
    4. Sulphur dioxide

    Which of the above are released into atmosphere due to the burning of crop/biomass residue?

    (a) 1 and 2 only

    (b) 2, 3 and 4 only

    (c) 1 and 4 only

    (d) 1, 2, 3 and 4

    What is Benzene?

    • Benzene is a chemical that is a colourless or light yellow liquid at room temperature. It has a sweet odour and is highly flammable.
    • It evaporates into the air very quickly. Its vapour is heavier than air and may sink into low-lying areas.
    • It dissolves only slightly in water and will float on top of the water.

    Its formation and uses

    Benzene is formed from both natural processes and human activities.

    • Natural sources of benzene include volcanoes and forest fires. Benzene is also a natural part of crude oil, gasoline, and cigarette smoke.
    • Some industries use benzene to make other chemicals that are used to make plastics, resins, and nylon and synthetic fibres.
    • It is also used to make some types of lubricants, rubbers, dyes, detergents, drugs, and pesticides.

    Benzene emission

    • The major sources of benzene exposure are tobacco smoke, automobile service stations, exhaust from motor vehicles, and industrial emissions.
    • Benzene is present in both exhaust and evaporative emissions. Motor vehicles account for approximately 85% of the total benzene emissions.
    • However, ingestion and dermal absorption of benzene can also occur through contact with contaminated water.
  • Global Geological And Climatic Events

    2001 FO32: the largest asteroid passing by Earth

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: 2001 FO32

    Mains level: Study of asteroids and meteors

    On March 21, the largest asteroid predicted to pass by Earth in 2021 will be at its closest. It is called 2001 FO32.

    Try this PYQ:

    Q.Which of the following is/are cited by the scientists as evidence/evidence for the continued expansion of the universe?

    1. Detection of microwaves in space
    2. Observation of redshirt phenomenon in space
    3. Movement of asteroids in space
    4. Occurrence of supernova explosions in space

    Codes:

    (a) 1 and 2 only

    (b) 2 only

    (c) 1, 3 and 4

    (d) None of the above can be cited as evidence.

    2001 FO32

    • There is no threat of a collision with our planet now or for centuries to come.
    • Scientists know its orbital path around the Sun very accurately since it was discovered 20 years ago and has been tracked ever since.
    • It won’t come closer than 2 million km to Earth, but it will present a valuable scientific opportunity for astronomers who can get a good look at a rocky relic that formed at the dawn of our Solar System.

    Proximity to Earth

    • For comparison, when it is at its closest, the distance of 2 million km is equal to 5¼ times the distance from Earth to the Moon.
    • Still, that distance is close in astronomical terms, which is why 2001 FO32 has been designated a “potentially hazardous asteroid”.
    • The reason for the asteroid’s unusually speedy close approach is its highly eccentric orbit around the Sun, an orbit that is tilted 39° to Earth’s orbital plane.
    • This orbit takes the asteroid closer to the Sun than Mercury, and twice as far from the Sun as Mars.
    • Later, the asteroid slows after being flung back out into deep space and swinging back toward the Sun. It completes one orbit every 810 days (about 2¼ years).

    Studying the visitor

    • This asteroid will provide an opportunity for astronomers to get a more precise understanding of the asteroid’s size and albedo (i.e. how bright, or reflective, its surface is), and a rough idea of its composition.
    • When sunlight hits an asteroid’s surface, minerals in the rock absorb some wavelengths while reflecting others.
    • By studying the spectrum of light reflecting off the surface, astronomers can measure the chemical “fingerprints” of the minerals on the surface of the asteroid.