MPPSC MAINS 2023 Paper-III

Points to Remember: Definition of a mineral. Characteristics of a mineral. Examples of minerals. Importance of minerals. Introduction: The term “mineral” is frequently used in everyday language, often interchangeably with “rock” or “ore.” However, in geology, a mineral has a precise scientific definition. A mineral is a naturally occurring, inorganic solid with a definite chemical … Read more

Points to Remember: Chemical weathering involves the alteration of rock minerals through chemical reactions. Water, oxygen, and acids are key agents in chemical weathering. Different rock types weather at different rates. Chemical weathering contributes to soil formation and nutrient cycling. Understanding chemical weathering is crucial for managing geological resources and environmental issues. Introduction: Chemical weathering … Read more

Points to Remember: The hydrosphere encompasses all water on Earth. It exists in various states (solid, liquid, gas). It’s crucial for life and various Earth processes. Human activities significantly impact the hydrosphere. Introduction: The hydrosphere is the total amount of water on Earth. This includes all forms of water – liquid water (oceans, lakes, rivers, … Read more

Points to Remember: The exact date of implementation of the Environmental Protection Act in India. Key provisions of the Act. Significance of the Act in environmental protection in India. Introduction: The Environmental Protection Act (EPA) of India is a landmark legislation aimed at protecting and improving the environment. Understanding its implementation date is crucial to … Read more

Points to Remember: The full form of WCED. The context and significance of WCED. Introduction: The acronym WCED stands for the World Commission on Environment and Development. Established by the United Nations General Assembly in 1983, the WCED was also known as the Brundtland Commission, named after its chair, Gro Harlem Brundtland, the then Prime … Read more

Points to Remember: Eutrophication is a process of excessive nutrient enrichment in water bodies. It leads to algal blooms, oxygen depletion, and loss of aquatic life. Human activities are the primary drivers of eutrophication. Mitigation strategies focus on reducing nutrient inputs and restoring water quality. Introduction: Eutrophication, derived from the Greek words “eu” (well) and … Read more

Points to Remember: Spring tides are exceptionally high and low tides. They occur during new and full moons. The gravitational pull of the sun and moon combine to create larger tidal ranges. Introduction: Tides, the rhythmic rise and fall of sea levels, are primarily caused by the gravitational pull of the moon. The sun also … Read more

Points to Remember: The full form of IREDA. IREDA’s primary function. IREDA’s significance in renewable energy development. Introduction: The question asks for the full form of IREDA. This requires a factual approach, focusing on providing the correct full form and potentially offering a brief description of the organization. IREDA plays a crucial role in India’s … Read more

Points to Remember: Biodiesel feedstocks are diverse, ranging from vegetable oils to animal fats. The production process involves transesterification. Sustainability and economic viability are key considerations. Environmental impact varies depending on the feedstock. Introduction: Biodiesel is a renewable fuel substitute for diesel fuel, typically made from vegetable oils, animal fats, or recycled greases. It’s gaining … Read more

Points to Remember: DRDO’s primary goal is to enhance India’s national security through indigenous defence technology development. It focuses on a wide range of defence systems, from missiles and aircraft to advanced materials and electronic warfare. DRDO collaborates extensively with academia and industry to achieve its objectives. Self-reliance in defence technology is a crucial aspect … Read more