Easy Level – GK Questions

Larynx contains vocal cords; vibration produces sound. Epiglottis prevents food entry during swallowing. Key anatomy for physiology questions. [[NCERT Biology Class 11]]

World Environment Day (June 5) was established by UN in 1972 to raise global environmental awareness. India hosted the first celebration. Important for current affairs. [[UNEP, NCERT Geography Class 11]]

PDF (Portable Document Format), developed by Adobe, preserves formatting across devices/platforms. Widely used for official documents, e-books, forms. Basic computer awareness. [[NCERT Computer Science]]

Geothermal energy uses steam/hot water from underground reservoirs for electricity or heating. India has potential in Puga (Ladakh), Manikaran (Himachal). Renewable and baseload. [[MNRE Reports]]

Anemophily: wind pollination (e.g., grasses, cereals). Flowers are small, inconspicuous, produce abundant light pollen. Contrasts with biotic pollination (insects, birds). [[NCERT Biology Class 12]]

Primary consumers (herbivores) eat producers (plants). Deer eat grass; lions are secondary consumers; fungi are decomposers. Understanding trophic levels is fundamental. [[NCERT Biology Class 12]]

Liver synthesizes bile (contains bile salts for fat emulsification); gallbladder concentrates and stores it. Released into duodenum during digestion. Key for physiology. [[NCERT Biology Class 11]]

https://www.incometax.gov.in is the official e-Filing portal for ITR submission, TDS tracking, and tax services. Part of Digital India for transparent governance. [[CBDT Guidelines]]

Specific heat (c) = Q/(mΔT), unit: J/kg·K. Water has high c (4186 J/kg·K), moderating climate. Essential for calorimetry problems. [[NCERT Physics Class 11]]

UPI enables instant bank-to-bank transactions via mobile apps (Google Pay, PhonePe, etc.). Developed by NPCI; revolutionized digital payments in India. Key for banking awareness. [[NPCI Reports, RBI Guidelines]]

BMI = weight (kg) / height (m)². Categories: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (≥30). Simple screening tool for weight-related health risks. [[WHO, MoHFW Guidelines]]

3Rs promote sustainable consumption: Reduce waste generation, Reuse items, Recycle materials into new products. Core concept in environmental education and policy. [[MoEFCC Guidelines, NCERT Geography Class 11]]

Tamil Nadu leads in wind energy (~10 GW), leveraging coastal winds. India ranks 4th globally in wind power. Important for energy and current affairs sections. [[MNRE Reports, NCERT Geography Class 11]]

El Niño involves unusual warming of central/eastern tropical Pacific, disrupting global weather (monsoons, droughts, floods). La Niña is the cooling phase. Important for geography. [[IMD Reports, NCERT Geography Class 11]]

SA (sinoatrial) node in right atrium generates electrical impulses initiating heartbeat (~72/min). AV node delays signal for atrial contraction. Critical for circulatory system understanding. [[NCERT Biology Class 11]]

UMANG (Unified Mobile Application for New-age Governance) is a single-window platform for 1,200+ services (Aadhaar, PAN, EPFO, etc.). Part of Digital India for citizen convenience. [[MeitY Reports]]

BOD measures oxygen required by microbes to decompose organic matter in water. High BOD indicates severe pollution. Critical parameter in water quality assessment. [[CPCB Guidelines, NCERT Biology Class 12]]

HIV (Human Immunodeficiency Virus) attacks CD4+ T-cells, weakening the immune system. Untreated HIV infection leads to AIDS. Awareness of pathogens is crucial for health sections. [[NCERT Biology Class 12, NACO Guidelines]]

Baking soda is NaHCO₃ (sodium hydrogen carbonate). It releases CO₂ when heated or mixed with acid, causing dough to rise. Common household chemical with exam relevance. [[NCERT Chemistry Class 10]]

Work W = F·d·cosθ. If θ=90°, cos90°=0, so W=0. Example: centripetal force does no work in circular motion. Key concept in mechanics. [[NCERT Physics Class 11]]