MPPSC MAINS 2019 Paper-III

Points to Remember: The ozone layer’s importance in protecting life on Earth from harmful UV radiation. The role of chlorofluorocarbons (CFCs) as ozone-depleting substances. The international efforts to phase out CFCs and protect the ozone layer (Montreal Protocol). The ongoing need for monitoring and research to ensure the ozone layer’s continued recovery. Introduction: The ozone … Read more

Points to Remember: Subscribe on YouTube Definition of photosynthesis The process of photosynthesis (light-dependent and light-independent reactions) Importance of photosynthesis for life on Earth Factors affecting photosynthesis Applications and future prospects Introduction: Photosynthesis is the fundamental process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. … Read more

Points to Remember: Oxidation involves the loss of electrons or an increase in oxidation state. Reduction involves the gain of electrons or a decrease in oxidation state. Oxidation and reduction always occur simultaneously (redox reaction). Redox reactions are fundamental in various chemical and biological processes. Introduction: Oxidation-reduction reactions, commonly known as redox reactions, are chemical … Read more

Points to Remember: Sewage composition and its harmful components. Pathways of sewage pollution into water bodies. Impacts of sewage pollution on water quality and ecosystems. Methods for mitigating sewage pollution. Introduction: Sewage, a complex mixture of wastewater from domestic, industrial, and commercial sources, poses a significant threat to water quality globally. It contains a variety … Read more

Points to Remember: A chemical formula represents the composition of a chemical compound or molecule. It uses symbols for elements and subscripts to indicate the number of atoms of each element. Different types of chemical formulas exist, each providing different levels of information. Introduction: A chemical formula is a concise way of representing the composition … Read more

Points to Remember: Depletion of fossil fuels Environmental concerns (pollution, climate change) Energy security and independence Economic benefits of renewable energy Technological advancements Introduction: The world’s reliance on fossil fuels – coal, oil, and natural gas – for energy generation is unsustainable. These resources are finite, their extraction and combustion contribute significantly to climate change … Read more

Points to Remember: Types of Intellectual Property (IP) Importance of IP protection Challenges in IP enforcement International frameworks governing IP Introduction: Intellectual Property Rights (IPR) are the legal rights granted to the creators of original works of the mind, allowing them exclusive control over the use and distribution of their creations. These rights are crucial … Read more

Points to Remember: ICT’s foundational role in modern telecommunication. Various applications of ICT across telecommunication services. Challenges and limitations in ICT’s integration with telecommunication. Future trends and potential of ICT in shaping the telecommunication landscape. Introduction: Information and Communication Technology (ICT) has revolutionized the telecommunication industry, transforming it from a simple system of voice transmission … Read more

Points to Remember: Subscribe on YouTube The question requires identifying numbers smaller than 5. The approach is factual, focusing on the mathematical definition of “smaller than.” Introduction: The question asks us to identify numbers that are less than 5. This is a fundamental concept in mathematics dealing with numerical comparisons and ordering. The set of … Read more

Points to Remember: Newton’s Law of Universal Gravitation Force of attraction Masses of objects Distance between objects Gravitational constant (G) Introduction: The universal law of gravitation, formulated by Sir Isaac Newton in his Principia Mathematica (1687), is a fundamental law of physics describing the attractive force between any two objects with mass. This law revolutionized … Read more