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NCERT Solutions : 1) Multiple Choice Questions (i) In which of the following states is the Wular lake located? (a) Rajasthan (c) Punjab (b) Uttar Pradesh (d) Jammu and Kashmir Answer: Wular Lake, renowned for its size and encircling beauty, is situated in Jammu and Kashmir. (ii) The river Narmada has its source at (a) … Read more
NCERT Solutions: 1. Describe the problems faced by the Weimar Republic. Answer: The Weimar Republic faced several problems: Political Instability: It was often seen as weak because of the frequent changes in government and the inability to form stable coalitions. Treaty of Versailles: The harsh terms of the treaty, which included massive reparations, loss of … Read more
NCERT Solutions In-Text Questions Answers: Q1. What do we get from cereals, pulses, fruits, and vegetables? Ans: Cereals primarily provide carbohydrates, which are essential for energy. Pulses are rich in proteins, crucial for growth and body repair. Fruits and vegetables are key sources of vitamins, minerals, and fibers, all necessary for maintaining overall health and … Read more
Q1. Which of the following is not a macronutrient for plants? a) Nitrogen b) Phosphorus c) Iron d) Potassium Answer: c) Iron Explanation: Macronutrients are those which plants consume in larger quantities. Iron, although essential, is a micronutrient required in smaller amounts. Q2. What is the primary benefit of crop rotation? a) Increases soil salinity … Read more
Q1. What happens to an object when unbalanced forces act on it? a) It continues moving at the same velocity b) Its motion remains unchanged c) It accelerates d) It vanishes Answer: c) It accelerates Explanation: An object accelerates when unbalanced forces act on it. This change can be in the form of a change … Read more
Q1. What is the primary characteristic of the rivers originating in the Himalayas? a) They are seasonal b) They have short courses c) They are perennial d) They originate from the Eastern Ghats Answer: c) They are perennial Explanation: Rivers originating in the Himalayas, such as the Indus, Ganga, and Brahmaputra, are perennial, meaning they … Read more
Q1. What event marked the beginning of World War II? a) The invasion of Poland by Germany b) The bombing of Pearl Harbor c) The Battle of Stalingrad d) The signing of the Treaty of Versailles Answer: a) The invasion of Poland by Germany Explanation: World War II began with Germany’s invasion of Poland on … Read more
Question 1 What is the scientific definition of work? a) Any physical or mental activity b) Force applied with no displacement c) Force causing displacement in the direction of the force d) Movement of an object in any direction Answer: c) Force causing displacement in the direction of the force Explanation: In science, work is … Read more
Question 1 What is a habitat? a) A type of plant b) A kind of animal c) The natural environment where an organism lives d) A part of the human body Answer: c) The natural environment where an organism lives Explanation: A habitat is the natural environment where an organism lives, which includes both biotic … Read more
Question 1 What causes the production of sound in various musical instruments? a) Electrical energy b) Mechanical vibrations c) Chemical reactions d) Light energy Answer: b) Mechanical vibrations Explanation: Sound in musical instruments is produced by mechanical vibrations. For instance, when a guitar string is plucked, it vibrates and creates sound. Question 2 In human … Read more