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1. Which event marked the beginning of the French Revolution? A) The storming of the Bastille B) The execution of Louis XVI C) The Tennis Court Oath D) The Reign of Terror Answer: A) The storming of the Bastille Explanation: The storming of the Bastille on July 14, 1789, is widely regarded as the event … Read more
Q1. Why must a magnesium ribbon be cleaned before burning in air? a) To increase its weight b) To remove the protective layer of oxide on its surface c) To make it look shiny d) To prevent it from burning Answer: b) To remove the protective layer of oxide on its surface Explanation: A magnesium … Read more
Q1. What was a significant reason for historians’ fascination with dates in history? a) To mark the achievements of rulers b) Because history is synonymous with memorizing dates c) As a method to understand changes over time d) To emphasize the importance of battles Answer: c) As a method to understand changes over time Explanation: … Read more
Q1. What is the primary purpose of nomenclature in the study of living organisms? a) To classify organisms into different categories based on their uses b) To standardize the naming of living organisms worldwide c) To differentiate between plants and animals d) To organize organisms based on their morphological similarities Answer: b) To standardize the … Read more
Q1. What is the SI unit of electric charge? a) Ampere (A) b) Coulomb (C) c) Ohm (Ω) d) Volt (V) Answer: b) Coulomb (C) Explanation: The SI unit of electric charge is the Coulomb (C), which represents the amount of charge contained in nearly 6 × 10^18 electrons. Q2. According to Ohm’s Law, the … Read more
Q1. Matter is made up of tiny particles. This concept was illustrated through an activity involving the dissolution of: a) Salt in oil b) Sand in water c) Salt in water d) Sugar in alcohol Answer: c) Salt in water Explanation: The dissolution of salt in water was used to demonstrate that matter is made … Read more
Q1. What is the role of dietary fibers in our body? a) They provide energy. b) They help in the absorption of proteins. c) They aid in digestion and prevent constipation. d) They are the main source of nutrients. Answer: c) They aid in digestion and prevent constipation. Explanation: Dietary fibers, also known as roughage, … Read more
Q1. What pigment is necessary for the process of photosynthesis in plants? a) Xanthophyll b) Chlorophyll c) Anthocyanin d) Carotene Answer: b) Chlorophyll Explanation: Chlorophyll is the green pigment located in the chloroplasts of plant cells that captures the energy of sunlight for photosynthesis, making it essential for this process. Q2. Which of the following … Read more
Q1. What is the first step in crop production? a) Irrigation b) Harvesting c) Preparation of soil d) Sowing Answer: c) Preparation of soil Explanation: The preparation of soil, which involves tilling and leveling, is the initial step before growing a crop. It allows the roots to penetrate deep into the soil and ensures nutrient-rich … Read more
Q1. What is the origin of the word ‘democracy’? a) Latin ‘demos’ meaning ‘state’ and ‘kratos’ meaning ‘power’ b) Greek ‘demos’ meaning ‘people’ and ‘kratia’ meaning ‘power’ c) French ‘democratie’ meaning ‘people’s rule’ d) English ‘demo’ meaning ‘simple’ and ‘cracy’ meaning ‘government’ Answer: b) Greek ‘demos’ meaning ‘people’ and ‘kratia’ meaning ‘power’ Explanation: The word … Read more