Continental Drift Theory Continental Drift Theory: Abraham Ortelius first put forward the speculation that the continent might have ‘drifted’ in 1596. The first comprehensive and fully developed Continental Drift Theory was proposed by a German meteorologist, Alfred Wegener in 1912. Alfred Wegener was the first person who used the phrase Read more…
Metamorphic rocks – Types and Characteristics Introduction: Metamorphic rocks are formed by the transformation of pre-existing rocks (igneous, sedimentary) to a new type of rock and then followed by the process called metamorphism. The pre-existing rock is subjected to high temperatures (greater than 150 to 200 °C), and high pressure, Read more…
Sedimentary rocks Sedimentary rocks are a type of rock formed by the accumulation or deposition of organic particles or minerals and their consolidation at the earth’s surface. The whole process of formation of these rocks is called sedimentation. Types of Sedimentary Rocks These rocks are of the following types: Argillaceous Read more…
The Rocks- Igneous Rocks: Introduction: Rocks are naturally occurring solid masses. These are aggregates of minerals like feldspars, micas, amphiboles, pyroxenes, olivine, quartz, calcite, dolomite, clays, and gypsum. Some rocks also contain mineraloids, which are rigid, mineral-like substances, like volcanic glass, lacking crystalline structure. Rocks form the outer solid layer, Read more…
Indian Independence Act of 1947 (For UPSC) Clement Attlee, the prime minister of Britain declared on 20 Feb 1947, that British rule will end in India by 30 June 1948, and the power would be transferred to Indians. On the third of June 1947, the British government made clear that Read more…
The Viruses- Classification, Structure, and Diseases Viruses are sub-microscopic, acellular, and non-cytoplasmic infectious agents. These replicates are only in the living cell of an organism. Viruses can infect every type of life form like animals, plants, microorganisms like bacteria, etc. and these are transmissible from diseased to healthy organisms. Dmitri Read more…
Mucormycosis or Black Fungus in COVID-19 Why it is in news? Black fungus or Mucormycosis infection has detected in a few COVID-19 Positive patients in various states, Delhi, Maharashtra, and Gujarat in INDIA. One of the known case COVID-19 positive and get infected with Black Fungus is as below : Read more…
Floral Diagram and Formula Floral Diagram: The diagram that illustrates the relative position and number of parts present in each whorl in a flower is termed the floral diagram. It provides information about the number of parts of a flower, their arrangement, and the relation they share. The diagram is Read more…
The Fruit – Morphology The fruit is a characteristic feature of flowering plants. It is a mature or ripened ovary that develops after fertilization. Sometimes fruit also develops without fertilization, which is called a parthenocarpic fruit. Type of fruits: parthenocarpic fruit: The fruit develops without fertilization, and it is a Read more…
Nobel Prizes and Nobel Laureates: 2020 Twelve laureates were awarded the Nobel Prize in 2020, for achievements that have conferred the greatest benefit to humankind Nobel Prizes and Nobel Laureates: 2020 Field Nobel Laureates Contribution of Nobel Laureates The Nobel Prize in Physics 2020 Roger Penrose for the discovery that Read more…
