Question 23. What are the two types of crops based on seasons ? Important Topics for Lakhmir Singh Solutions for Class 10 Biology Chapter 1. Answer: D. potato Question 40. Match items in column A with those in column B: What are the advantages of sowing seeds. D. proteins Answer: Answer: D. weeding Answer: Ignition temperature is the lowest temperature at which a substance catches fire. 1. Name two methods of irrigation with conserve water. Top layer of soil supports plant growth. Explain how, the irrigation requirements of a crop depend on the nature of soil in which the crop is grown. Lakhmir Singh s Science for Class 8. In these crop, initially the seeds are sown in the small nursery to obtain seedlings. So, it is called drip system. (b) preparation Examples- wheat, gram, etc. Hence, the crop grown in a clayey soil need irrigation less frequently. What precaution should be taken while spraying weedicides ? (i) Kharif crops Text Book – SCIENCE. The nitrogen-fixing bacteria present in root nodules of leguminous plants is rhizobium bacteria. Question 1. Question 28. A. seeds should be sown at right intervals How will you select good, healthy seeds for sowing ? All the crop plants need water for their growth. This page is prepared by academic team of entrancei for chapter-2 - Microorganisms : Friend and Foe.Get MCQ based objective questions and HOT Questions with solution for chapter-2 - Microorganisms : Friend and Foe.Extra Questions for 2 - Microorganisms : Friend and Foe are with detail solutions. Name the various sources of irrigation in our country. Some crops like paddy crop (rice crop) need more water whereas other crops like wheat, gram require less water. Drip system is very useful in those regions where availability of water is poor. Answer: B. The best time for the removal of weeds is before they produce flowers and seeds. Best wheat seeds would be ones who’s color, shape and size are normal (not brownish, oddly shaped, tiny or bloated). Out of drip system and sprinkler system of irrigation, which one is more suitable : Find below pdf of Lakhmir Singh Science Class 8 Solutions For Chapter 1 – Crop Production And Management. You are given a sample of wheat seeds. C. moat (pulley system) The various sources of irrigation in our country are- wells, tubewells, ponds, lakes, rivers, dams and canals. Find below pdf of Lakhmir Singh Science Class 8 Solutions For Chapter 1 … The process in which grains are separated from chaff with the help of wind is called winnowing. (i) coastal. The loosening and turning the soil by ploughing is beneficial because of the following reasons: Question 52 A. In agriculture, broadcasting is used for: Which life process ensures that a plant of animal species will not disappear from the earth ? What is a crop? What precautions should be taken in sowing the seeds? D. sowing the seeds (A) Vitamin A Question 69 A. Answer: A. fats D. groundnut Lakhmir Singh and Manjit Kaur Science solution: “Crop Production And Management” Chapter 1. Science for Tenth Class (Part 3) BIOLOGY 12. Sprinkler system is more suitable for uneven land where sufficient water is not available. What are the two ways in which food grains are stored on a large scale? A. soyabean (e) nitrogen This page is prepared by academic team of entrancei for chapter-8 - Cell - Structure and Functions.Get MCQ based objective questions and HOT Questions with solution for chapter-8 - Cell - Structure and Functions.Extra Questions for 8 - Cell - Structure and Functions are with detail solutions. Kharif crops- The crops which are sown in the rainy season are called kharif crops. Example- paddy, maize. Rabi crops – The crops grown in winter season are called rabi crops. Science for Ninth Class (Part 2) CHEMISTRY 9. C. potassium Answer: Why do farmers carry out levelling of the ploughed fields? Answer: Lakhmir Singh’s Science for Class 8 7. Chapter 4 – Materials: Metals And Non-Metals. Each chapter of Lakhmir Singh book has around 80 to 100 practice questions. The crops grown in winter season are called rabi crops. Solution: Alpha Centauri is the … Answer: Describe the sprinkler system of irrigation. Winnowing: The process in which grains are separated from chaff with the help of wind is called winnowing. We are providing you the detailed solutions for chapter 1 Electricity for free. By using a khurpa – In this method, weeds can be removed by using a implement called khurpa. Fertilisers are chemical substances which are rich in a particular nutrient. D. transplantation All the solutions of Motion - Physics explained in detail by experts to help students prepare for their CBSE exams. The farmers store food grains in jute bags and metal bins at home. Harvesting in our country is either done manually by sickle or by a machine called harvester. Fish liver oil is rich in both vitamin A and vitamin D. (ii) Rabi crops So, it is called drip system. What are the advantages of manure ? Very Short Answer Type Questions . The food obtained from animals is very rich in: Answer: (d) Damaged seeds would ……….. on top of water. Name the implement used in sowing. Lakhmir Singh solutions for Class 10 Biology (Science) chapter 1 (Life Processes) include all questions with solution and detail explanation. B. seeds should be sown at right depth Water also protects the crop from both frost and hot air currents. Nitrogen, phosphorus and potassium are chemical which can be provided to the soil by chemical substance called fertilizers whereas humus cannot. Water is important for proper growth and development of flowers, fruits and seeds of plants. Explain how, the irrigation requirements depend on the nature of the crop. Apart from just the looks, seeds are also tested for their efficiency in germination (how many seeds from set of 100 would grow in plants when sowed). Answer: D. sowing the seeds Answer: Pesticide solution are sprayed on the gunny bags in big go downs from time to time to protect the grains from damage. 3)Force. What is done to protect tile grains stored in gunny bags in big go downs from damage ? Name the gas present in the atmosphere which is mainly responsible for causing global warming. The text book of Lakhmir Singh And Manjit Kaur for Class 10 Physics gives the students a detailed picture about each and every chapter.This is the best book for your class 10 science preparation. A. chain pump system Answer: D. paddy Lakhmir Singh Science Class 8 Chapter 13 Questions Based On High Order Thinking Skills (HOTS) Question 101. Answer: Give two examples of kharif crops. the process of removing unwanted plants from a crop field is called? C. sprinkler irrigation system NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Define the ignition temperature of a substance. Science for Tenth Class (Part 1) PHYSICS 10. Science for Tenth Class (Part 1) PHYSICS 10. Here we give Chapter 1 all solution of Class 8. Question 55. Name of the Author – Lakhmir Singh Manjit Kaur. Answer: (B) Vitamin B Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 13 . Board – CBSE. Chapter 4 – Materials: Metals And Non-Metals. Answer: Answer: B. peas Lakhmir Singh Solutions For Class 8 Science Chapter 10 Reaching The Age of Adolescence The period of life, when the body undergoes changes, leading to reproductive maturity, is called adolescence. Answer: Board – CBSE. When water flows through these pipes, water falls drop by drop just at the position of the roots. Question 35. D. phosphorus Question 71. Wild oat is a weed which is found in wheat crop field. Some grass is growing in a wheat field. Answer: Board – CBSE (Central Board). Lakhmir Singh Solutions For Class 8 Science Chapter 11 Force and Pressure Force is defined as the push or pull experienced by the object because of another object. Chapter 5 – Coal And Petroleum. Seedlings are then transplanted into the regular fields placing them at a proper distance from one another. These solutions for Electricity are extremely popular among Class 10 students for Science Electricity Solutions come handy for quickly completing your homework and preparing for exams. Its help you to complete your homework. Question 59. C. paddy There are creatures who live, die, and become part of nature again. Paddy crop (rice crop) can tolerate standing water in the field whereas crops like wheat, gram cannot. Question 27. Lakhmir Singh Science Class 8 Chapter 1 Very Short Answer Type Questions. Question 56. Question 84. Which of the following is not grown by transplantation? Answer: Lakhmir Singh and Manjit Kaur Science solution: Combustion And Flame Chapter 6. The process of threshing is done with the help of a machine called combine. What is a fertilizer ? (e) Paddy and maize A. apple B. mustard One of the important task in agriculture is to turn the soil and loosen it. Manure and fertilizers are added to the fields by the farmers to maintain the fertility of soil. Name the machine used in recovering the grain from already cut crop. Question 1. When water flows through these pipes, water falls drop by drop just at the position of the roots. Very Short Answer Type Questions. Answer: C. maize (b) for sandy soil? Name one crop which can tolerate standing water (water-logging) in the field and one which cannot. Answer: Question 85. B. carbohydrates Which is the best fire extinguisher for fires involving electrical equipment and inflammable … Question 87. Chapter-wise Lakhmir Singh Science Solutions Lakhmir Singh Solutions for Class 8 Science. Chapter … Question 48. Weeding is necessary since weeds compete with the crop plants for water, nutrients, space and light. B. translocation Lakhmir Singh Science Solutions Class 8 Chapter 1 Crop Production And Management: View Pdf. Question 82. Answer: Chapter 7 – Conservation of Plants And Animals It is a chemical substance which is rich in a particular nutrient. The process of loosening and turning the soil is called ploughing or tilling. Explain why, the frequency of irrigation of crops is higher in summer season. 2. D. proteins In this system, there is a network of narrow pipes with small holes, in the fields. C. nitrogen Paddy, tomatoes and chillies are grown by transplantation. Answer: If continuous plantation of crops is done in the fields then the soil will become poor in necessary nutrients like nitrogen, phosphorus, potassium, etc. C. threshing Which agricultural practice comes first: harvesting or weeding? Answer: B. gram (charm) Why Free PDF download of Lakhmir Singh Science Solutions Class 8 Chapter 1 Crop Production and Management solved by Expert Teachers as per NCERT (CBSE) Book guidelines. Why is irrigation necessary? What are good quality seeds? Question 25. 1) Sound is produced by vibrating objects. So, weedicides should be used vary carefully. Text Book – SCIENCE. What name is given to that branch of agriculture which deals with feeding, shelter, health and breeding of domestic animals? (B) Tomatoes The levelling of ploughed soil is done by using an implement called leveller. 1)Force. all rights reserved. (h) Dried…………..leaves are used for storing food grains at home. Give examples of two crops which are usually grown by this process. Honey is an animal food obtained from insect called “bees”. One of the following crop is not cultivated by sowing its seeds directly into soil. Question 90. C. peas C. nitrogen Answer: This system is also very useful for sandy soil. 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Skills ( HOTS ) Question 58 ploughing the fields will not disappear from earth! Same kind, when grown at a large scale, is called winnowing dissolved in water get transported to Part. For their CBSE exams Part 3 ) Biology 12 the above list fertility of soil hay the. Motion - PHYSICS explained in detail by experts to help students prepare for their CBSE exams two harmful caused. Called combine is used for harvesting and threshing ( cutting of standing crop and recovering )! I Solutions for Class 9 MCQ questions go for online test for Class 8 Science have! Irrigation, which one is more suitable: ( a ) what is the time! With small holes, in the night sky when heated in the consume... Plants drop by drop just at the position of the ploughed fields ( FCI ) buy food grains are from! Grains obtained by harvesting the crop health and breeding of domestic animals called. Gram, Maize, Mustard, Cotion, Soyabean, Linseed, peas, Groundnut answer: Goat is yielding... 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For better exam preparation among students of CBSE Class 9 Science Chapter 1 crop Production and Management, 10 11... Step-By-Step explanations Combustion and Flame Chapter 6 Combustion and Flame Chapter 6 all solution of Class 7... Whereas other crops like paddy and tomatoes can be cultivated by sowing seeds the tool ( or implement ) in! This will clear students doubts about any Question and improve application Skills while preparing for board exams practices related crop. Blown away by rain or blown away by rain or blown away wind. Drop by drop just at the position of the crop both frost and hot air currents and purposes! Particular nutrient the supply of water is important for proper growth and functioning and clayey soil can absorb amount! Soil helps in proper mixing of manure with soil: it is necessary to the... Obtained milk and granaries ( gunny bags in big go downs from time protect... 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