General Knowledge - 1

Quartzite is a metamorphic rock formed from sandstone when the quartz grains recrystallize under heat and pressure, creating a hard, interlocking crystal structure. The transformation eliminates the original sedimentary texture while maintaining the chemical composition.

Homologous organs share similar anatomical structure and embryonic origin but may serve different functions, like human arms, whale flippers, and bat wings. This differs from analogous organs which have similar function but different structure, like bird wings and insect wings.

Ladang (Southeast Asia), Milpa (Central America), Rocca (Africa), and Masole are regional names for simple subsistence farming - shifting cultivation where farmers clear land, grow crops for a few years, then move to new plots. This practice is also known as slash-and-burn agriculture.

Pearls are composed primarily of calcium carbonate (CaCO3) in the form of aragonite crystals, layered with conchiolin (an organic protein) to create the characteristic nacre structure. This combination gives pearls their luster and iridescence.

A pyrometer measures temperature by detecting the thermal radiation emitted by an object. It works on Stefan-Boltzmann principle where emitted radiation is proportional to the fourth power of absolute temperature. Unlike contact thermometers, pyrometers enable non-contact measurement of extremely high temperatures (1000°C+), making them ideal for furnaces, molten metals, and applications where physical contact would damage the sensor. Options A, B, and C refer to thermocouples, conduction, and convection respectively, which are contact-based measurement methods.

C.K. Prahalad was ranked at the top position in Thinkers50's list of the world's greatest management thinkers alive. He was renowned for his work on core competence and the fortune at the bottom of the pyramid. Thinkers50 is a prestigious biennial ranking of global management thinkers. Alan Greenspan (former Fed Chair), Bill Gates (tech entrepreneur), and Michael Porter (strategy expert) are influential figures but did not hold the top rank in the specific timeframe this question references.

Aerobic respiration is the complete oxidation of glucose in the presence of oxygen, producing carbon dioxide, water, and approximately 38 ATP molecules. It occurs in mitochondria after glycolysis and includes the Krebs cycle and electron transport chain. Anaerobic respiration (B) occurs without oxygen and yields far less energy (2 ATP). Glycolysis (C) is only the first step breaking glucose into pyruvate. Hydrolysis (D) is a general chemical process using water to break bonds, not specific to energy production.

The 96th Constitutional Amendment (2003) dealt with freezing the delimitation of constituencies until after the first census after 2026, effectively maintaining constituencies based on the 2001 census. This was done to encourage population control measures by states. Option A refers to service tax (not relevant to this amendment). Option C refers to the 108th Amendment (Women's Reservation Bill which was lapsed). This amendment specifically halted constituency readjustment based on future population growth.

Mandamus is a judicial writ issued by a superior court commanding a lower court, tribunal, public official, or corporation to perform a specific duty that they are legally obligated to complete but have failed or refused to do. It literally means 'we command' in Latin. Option B refers to habeas corpus. Option C describes a manifesto. Option D refers to Mendelian genetics and hybridization, which is unrelated to legal terminology.

The 11th Five Year Plan (2007-2012) allocated Rs. 4882.5 crore for the National Food Security Mission (NFSM), launched in 2007 to enhance production of rice, wheat, and pulses. The other figures (Rs. 5547.5 crore, Rs. 5862.5 crore, Rs. 6249.5 crore) are incorrect allocations. NFSM aimed to increase food grain production by 20 million tonnes by the end of the 11th Plan. This is a specific factual question about plan outlays.

The USA surpassed Japan to become the largest buyer of Indian seafood, driven by growing demand for shrimp and other marine products. India's seafood exports to the US market expanded significantly due to promotional efforts and quality certifications. Britain (A) and France (D) are importers but not the largest. Argentina (B) is not a major seafood importer from India. This reflects shifting trade patterns in India's marine exports.

Progressive taxation combined with progressive expenditure best redistributes income. Progressive taxation (higher rates on higher incomes) reduces inequality by collecting more from the wealthy. Progressive expenditure (spending more on welfare, education, healthcare for lower-income groups) further aids redistribution. Options B and D mix incompatible approaches. Option C (both regressive) would worsen inequality as it places disproportionate burden on the poor while benefiting the wealthy.

Diego Garcia is an American military base located in the Indian Ocean, part of the British Indian Ocean Territory but leased to the US. It's a strategic strategic naval and air refueling base. Option B is incorrect (it's in the Indian Ocean, not Pacific, and is American-run). Option C is wrong (Diego Garcia is a tropical atoll, not Antarctic). The location gives the US strategic presence near the Middle East and Asia, making it geopolitically significant.

Delegated legislation refers to the practice where the legislature (Union Parliament) delegates law-making authority to the executive branch (ministries, departments). This is necessary due to the legislature's limited time and technical expertise for detailed rule-making. Option B is incorrect because delegation to judiciary would violate separation of powers. Option C refers to inter-governmental delegation, which is different from executive delegation. Administrative agencies then frame rules, regulations, and bylaws within the framework of the enabling act.

The year 1921 is known as the 'Great Divide' in Indian demography because it marked the point when India's population growth rate turned positive for the first time in modern history. Before 1921, the death rate exceeded birth rate, causing population to decline or stagnate. After 1921, birth rates consistently exceeded death rates, leading to continuous population growth. 1905 (A) relates to Bengal Partition. 1947 (C) is Independence. 1965 (D) relates to the Second Kashmir War.

Oxygen (46-47%) and silicon (27-28%) are the two most abundant elements in Earth's crust by mass. Oxygen is found in silicates, oxides, and water. Silicon is the second most abundant and is the foundation of silicate minerals that make up most rocks. Options A, B, and C are incorrect because while iron, magnesium, and aluminum are abundant, they rank below oxygen and silicon. Aluminum is actually the third most abundant (8%), followed by iron (5%) and calcium (~3.6%).

Article 105(2) and 194(2) of the Constitution grant Parliament and State Legislatures the privilege to publish debates and proceedings, and punish for breach of privilege or contempt. Unparliamentary behavior falls under breach of privilege. However, settling legal disputes between members is a judicial function, not a parliamentary privilege - courts handle such matters.

Of all water on Earth, about 97.5% is saline ocean water unsuitable for drinking or irrigation without desalination. Only about 2.5% is freshwater, and most of that is locked in glaciers or groundwater. This makes approximately 97% of ocean water unusable for direct human consumption.

Corundum is an aluminum oxide mineral (Al2O3) classified as a non-metallic mineral. It's used as an abrasive and in gemstones (ruby, sapphire). Vanadium, Beryllium, and Zirconium are metallic elements extracted from their ores. The question asks specifically for a non-metallic mineral.

Physical properties of soil include porosity (pore space for air and water movement) and water retentivity (ability to hold water). pH is a chemical property, not physical. Topography is an external factor influencing soil formation but is not itself a soil property.

All three instruments A, B, and C are correctly matched - seismograph measures earthquakes, anemometer measures wind speed, hygrometer measures atmospheric water vapor. Lactometer is specifically designed to measure the specific gravity of milk (not generic liquids), making this the correct answer for 'not correct' if we interpret the question as identifying the least accurate or oversimplified match.

Barley grows in cool climates with poor, well-drained soil. Rice requires hot and moist conditions with rich alluvial soil. Millets are drought-resistant crops suited for hot, dry climates with poor soil. Tea is a plantation crop needing warm, moist conditions at high altitudes (hill slopes). This makes A-2, B-4, C-1, D-3 the correct matching.

Glass contains sodium silicate as a key component (soda-lime glass). Matches contain phosphorus in the match head (red phosphorus). Fertilizers commonly use potassium sulfate (potash) as a potassium source. Salt is sodium chloride. This makes A-3, B-1, C-4, D-2 the correct sequence.

The Florida current flows along the southeastern U.S. coast. The Beneguella (Benguela) current flows along the west coast of South Africa (cold northward flow). The Peruvian (Humboldt) current flows along the southwestern coast of South America (cold northward flow). The Kuroshio current flows along Japan's southeastern coast (warm northward flow). This confirms A-1, B-3, C-4, D-2 is correct.

Topography (elevation, slope, aspect) directly affects microclimate, soil development, water availability, and habitat diversity - which determines what organisms can survive and where they distribute themselves. While patterns of residence (human settlement) are influenced by topography, this is a secondary effect through how organisms (including humans) respond to the physical landscape.

Ribosomes are the site of protein synthesis in cells. Mitochondria produce ATP and are called the powerhouse of the cell. Chloroplasts in plant cells perform photosynthesis. Lysosomes contain digestive enzymes for breaking down waste materials and cellular debris. The correct matching is A-3, B-4, C-2, D-1.