DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 4th December 2023
Archives (PRELIMS & MAINS Focus) Farlowichnus rapidus Syllabus Prelims – Environment and Ecology Context: Recently, Scientists Discovered A New Dinosaur Species, Farlowichnus rapidus From Footprints In Brazil. Background:- The new species, called Farlowichnus rapidus, was a small carnivorous animal about the size of a modern-day seriema bird, or about 60-90 cm tall. About Farlowichnus rapidus:- Farlowichnus rapidus, was a small carnivorous It lived in the desert. It was a carnivore, so only ate meat It was 60-90 cm (2-3 feet) tall. It was about the size of a modern-day bird.( Kerala Bird Atlas (KBA)) From the large distance between the footprints found, it is possible to deduce that it was a very fast reptile that ran across the ancient dunes. The early Cretaceous period stretched from 100 to 145 million years ago. Significance:- The discovery not only enhances our understanding of ancient desert ecosystems. It also underscores the importance of continuous exploration and analysis of fossil records. MUST READ: Saltwater crocodile SOURCE: BBC PREVIOUS YEAR QUESTIONS Q.1) With reference to Indian laws about wildlife protection, consider the following statements : (2022) Wild animals are the sole property of the government. When a wild animal is declared protected, such animal is entitled to equal protection whether it is found in protected areas or outside. Apprehension of a protected wild animal becoming a danger to human life is sufficient ground for its capture or killing. Which of the statements given above is/are correct? 1 and 2 2 only 1 and 3 3 only Q.2) Certain species of which one of the following organisms are well known as cultivators of fungi? (2022) Ant Cockroach Crab Spider Cosmic Vine Syllabus Prelims –SCIENCE AND TECHNOLOGY Context: Recently, James Webb Space Telescope recently discovered the ‘Cosmic Vine’ of 20 connected galaxies in the early universe. Background:- Astronomers using James Webb Space Telescope (JWST) data have discovered a massive chain of at least 20 closely packed galaxies from the early universe, and it could reveal insight into how the most massive structures in the cosmos form. About Cosmic Vine:- Cosmic Vine is a massive “vine-like structure” that encompasses 20 galaxies and stretches for over 13 light years. Galaxies are immense systems in space containing stars, stellar remnants, interstellar gas, dust, and dark matter, all held together by gravity. It’s also very ancient. The researchers pegged it at redshift 3.44, meaning it’s situated in the early universe. A redshift of 3.44 would mean light from the Cosmic Vine has been travelling for between 11 and 12 billion years before reaching JWST. It harbours two of the most massive galaxies ever discovered at such a high redshift—Galaxy A and Galaxy E, both in a quiescent state, indicating a reduced rate of star formation. Unique Characteristics:- It is exceptionally lengthy and vast, surpassing the size of other known compact galaxy groups at similar redshifts. It contains two of the most massive galaxies ever discovered at such high redshifts (Galaxy A and Galaxy E), both in a quiescent state, implying reduced star formation rates. Significance:- It offers new perspectives on the formation and evolution of massive galaxies. ( International Space Station (ISS)) It suggests that massive quiescent galaxies can form within expanding large-scale structures, contrary to some earlier models. MUST READ: IN-SPACe SOURCE: SPACE PREVIOUS YEAR QUESTIONS Q.1) Consider the following statements: (2023) Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile. Which of the statements given above is/are correct? 1 only 2 only Both 1 and 2 Neither 1 nor 2 Q.2) Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in media? (2022) A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space. A spacecraft lands on another planet after making several orbital motions A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth. A spacecraft moves along a comet with the same surface. speed and places a probe on its Earthquake Syllabus Prelims –GEOGRAPHY Context: Recently, a powerful 7.6 7.6-magnitude earthquake Struck the Southern Philippines. Background:- More than 500 aftershocks were recorded, and the Philippines Institute of Volcanology and Seismology (Phivolcs) urged caution as people resumed normal activities. About Earthquake:- An earthquake is the shaking or trembling of the earth’s surface. It is caused by the seismic waves or earthquake waves that are generated due to a sudden movement (sudden release of energy) in the earth’s crust (shallow-focus earthquakes) or upper mantle (some shallow-focus and all intermediate and deep-focus earthquakes). A seismograph, or seismometer, is an instrument used to detect and record earthquakes. Hypocentre/Focus: The point where the energy is released. Epicentre: The point on the surface directly above the focus. (Anatolian Plate) Isoseismic line: A line connecting all points on the surface where the intensity is the same. Causes of Earthquakes:- Fault Zones Plate tectonics Volcanic activity Human-Induced Earthquakes MUST READ: Urban Flooding SOURCE: MSN PREVIOUS YEAR QUESTIONS Q.1) Consider the following pairs: (2022) The region often mentioned in the news: Country Anatolia Turkey Amhara Ethiopia Cabo Delgado Spain Catalonia Italy How many pairs given above are correctly matched? Only one pair Only two pairs Only three pairs All four pairs Q.2) consider the
DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 4th December 2023 Read More »