Tag Archives: CBSE Class 8 NCERT Solutions

Question: What harm can dumping of untreated sewage into a river cause? Answer: Untreated sewage from homes is often disposed off into rivers. These wastes contain many harmful microorganisms – bacteria, viruses, fungi and parasites that cause diseases such as diarrhoea, dysentery, cholera, typhoid and jaundice. Question: Why is hot water …

Question: While looking up at the sky, how can you distinguish between a planet and a star? Answer: While looking up at the sky, we can distinguish between a planet and a star by observing their twinkling nature. Stars twinkle at night sky whereas planets do not. Question: What is the …

Question: What do you mean by refraction of light? In which direction will light bend when travelling from an optically rarer medium to an optically denser medium? Answer: The bending of light as it passes from one transparent medium to another is called refraction. It occurs because light travels at lower …

Question: What is electric current? Answer: The flow of electrons constitutes an electric current. Question: How is electronic current different from conventional current? Answer: The flow of electronic current is from negative to positive whereas the flow of conventional current is from positive to negative. Question: Differentiate between conductors and insulators. Answer: Difference is as …

Question: What are the basic ideals of a democracy? Answer: The basic ideals of democracy are… The participation of the citizens in the government’s decision-making. The need for the government to have the consent of its citizens in all major issues taken by it. Question: What is the purpose of …

Question: Who was Soyrabai? Answer: She belonged to the Mahar caste. Question: Name two distinct cultural and religious groups in the country. Answer: Muslims and Parsis. Question: What did the marginal groups rely on to protect themselves from continued exploitation by other groups? Answer: Marginal groups relied on the Constitution of India …

Question: Mention the branches of the Legal system. Answer: The Legal system can be divided into 2 branches, criminal law and civil law. Question: What do you understand by the word ‘law’? Answer: Law is a system of rules, usually imposed through a Government or Institution and is applied to …

Question: Define the term “Criminal Justice System”. Answer: Criminal justice system is the ‘body of law’ or ‘Court’ regulating the inquiry into whether a person has violated criminal law or not. Question: What is the role of the police in the Criminal Justice System? Answer: In the Criminal Justice System …

Question: What is reflection of light? Answer: The objects send back the light which falls on them. This sending back of light by objects is called reflection of light. Question:What is the second law of reflection? Answer: The second law of reflection states that the incident ray, the normal and the …

Question: What is a constitution? Why need to have a constitution? Answer: A constitution is an important document laying down the fundamental principles of a country. The country is governed by these principles. Our Constitution was prepared by the Constituent Assembly. The Indian Constitution came into effect on 26 January …