Wednesday , February 19 2020

Tag Archives: CBSE Class 8 NCERT Solutions

NCERT 8th Class (CBSE) Science: Some Natural Phenomena

Electroscope

Question: Why does a comb rubbed on hair attract pieces of paper? Answer: The comb on rubbing became gets electrically charged and attract pieces of paper. This is called electrostatic force. Question: Under what conditions do charges attract or repel each other? Answer: Like charges repel and unlike charges attract each other. …

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NCERT 8th Class (CBSE) Social Science: Industries – Comparative Studies

Industry

Question: Name large scale industries. Answer: The large scale industries are as under: Textile industries Iron and Steel industry Sugar industry Cement industry Aircraft industry Question: Why is iron and steel industry called basic industry? Answer: The iron and steel industry is called a basic industry because it provides iron and …

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NCERT 8th Class (CBSE) Science: Sound

Sound

Question: How is sound produced? Answer: Sound is produced by rapid to-and-fro movements called vibrations. Question: Distinguish between infrasonic and ultrasonic. Answer: Difference is as follows: Question: What do you mean by time period of a vibrating object? Answer: The time taken for one complete vibration or oscillation is called its time period. Question:What is …

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NCERT 8th Class (CBSE) Social Science: Major Crops And Agricultural

Farming

Question: Write a short note explaining the different cropping seasons. Answer: There are three major cropping seasons, i.e. Rabi, Kharif and Zaid. Rabi: Crops are sown in winters between October to December and harvested between February to April. Major crops of this season are: wheat, barley, peas, gram, and oil seeds. …

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NCERT 8th Class (CBSE) Social Science: Natural Resources – Land, Soil and Water

English Essay on Value of Sports for Students and Children

Question: What are the possible reasons behind the uneven distribution of population around the world? Answer: The reasons behind uneven population distribution are mainly the varied conditions of land and climate. Question: Give three common forms of land use. Answer: Three common land use forms are: As cropland Pasture Forests. …

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NCERT 8th Class (CBSE) Social Science: Manufacturing Industries

Industry

Question: Define industry. Answer: Industry refers to an economic activity that is concerned with production of goods, extraction of minerals or provision of services. Question: Name three common methods of classifying industries. Answer: Industries are classified according to raw material used, size and ownership. Question: Expand the abbreviation AMUL. Where …

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NCERT 8th Class (CBSE) Science: Conservation of Plants and Animals

Animals – Habitat and Adoption

Question: What is biodiversity? Answer: Biodiversity is the variety of plants, animals and microorganisms generally found in an area. Question: What do you mean by flora and fauna? Answer: Flora: Species of all plants found in a particular area is known as flora of that area. Fauna: Species of all animals found in …

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NCERT 8th Class (CBSE) Science: Combustion and Flame

Flame

Question: What is combustion? Answer: The process of burning of substances in air or oxygen with the evolution of heat and light is known as combustion. Question: Distinguish between combustible and non-combustible substances, giving three examples of each. Answer:  Question: Why is it more difficult to burn some combustible substances than others? Answer: Different substances …

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