This is important when you’re dealing with plants at a large scale, and you need to maintain crops for a large​ time frame. The irrigation requirements of a crop depend on the nature of soil in which the crop is grown. Name one meat yielding animal and one egg yielding animal. It does not provide any humus to the soil. Name two crops which are cultivated: Name the practice used for cultivating paddy. The two crops which are not grown by sowing their seeds directly into the soil in large fields are: Board – CBSE. Text Book – SCIENCE. What type of organisms grow on stored food grains having higher moisture content? Following are the advantages of sowing seeds with a seed drill: Question 49. Question 71. A. chain pump system (b) for sandy soil? Good quality seeds basically mean the most competent seeds, which will definitely give rise to a healthy plant, which would bear more healthy seeds. C. nitrogen (h) neem (C) Chillies Honey is an animal food obtained from insect called “bees”. The implement used for sowing is seed drill. The process of threshing is done with the help of a machine called combine. A-1, Acharya Nikatan, Mayur Vihar, Phase-1, Central Market, New Delhi-110091. VERY SHORT ANSWER TYPE QUESTIONS Answers. (d) float Science for Tenth Class (Part 1) PHYSICS 10. Irrigation is necessary to provide moisture for germination of seeds because germination of seeds does not take place under dry conditions. C. moat (pulley system) Name three food materials obtained from animals. Chapter 7 – Conservation of Plants And Animals To apply force, minimum two objects need to be involved: one which exerts force and the other that experiences the force. The solutions covered are easy to understand, and each step by step in the solution is described to match the students’ understanding. (i) Many people living in the ……….areas consume fish as a major part of their diet. Define ignition temperature of a substance. Question 73. Here we give Chapter 6 all solution of class 8. Name one major food nutrient provided by fish. Class – 6 (Six). (a) The same kind of plants grown and cultivated on a large scale at a place is called …………………. (f) The supply of water to crops at different intervals is called ………….. Lakhmir Singh Solutions For Class 8 Science Chapter 6 Combustion And Flame Very Short Answer Type Questions 1. The substances W is a fossil fuel. Some weeds interfere even in harvesting and may be poisonous for animals and human beings. Chapter 3 of Lakhmir Singh Science Class 8 Solutions is introduced to give you all the information about man-made fabric and plastic that we use in our day-to-day life. The process of beating out the grains from the harvested crop plants is called threshing. The sowing of seeds by hand is called broadcasting. Question 22. Which agricultural practice is carried out with the help of a sickle? B. pea Which of the following cannot be provided to the soil by a chemical fertilizer? students are advised to check out the complete syllabus.. CBSE Useful Resources. (D) Vitamin D The nitrogen-fixing bacteria present in root nodules of leguminous plants is rhizobium bacteria. What is meant by kharif crops ? Answer: This page is prepared by academic team of entrancei for chapter-7 - Conservation of Plants and Animals.Get MCQ based objective questions and HOT Questions with solution for chapter-7 - Conservation of Plants and Animals.Extra Questions for 7 - Conservation of Plants and Animals are with detail solutions. Page no: 350. 27. Here we give Chapter 1 all solution of Class 8. D. honey 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). What are the two types of crops based on seasons ? D. FDI Examples- wheat, gram, etc. So, the food grains obtained by harvesting the crop are dried before storage. C. sprinkler irrigation system Answer: 1) Sound is produced by vibrating objects. What name is given to the cutting and gathering of a food crop like wheat or paddy? The irrigation requirements depend on the nature of crop. Lakhmir Singh Class 8 Science Solutions Chapter 3 – Synthetic Fibers and Plastics. below we have mentioned complete Class 9 Science Syllabus. Question 3. Answer: Reproduction is an important life process which ensures that a plant or animal species does not disappear from this earth. What is a crop? Seeds should not be sown in dry soil because water is necessary for germination of seeds. Chapter 3 of Lakhmir Singh Science Class 8 Solutions is introduced to give you all the information about man-made fabric and plastic that we use in our day-to-day life. Lakhmir Singh Science Class 8 Chapter 13 Questions Based On High Order Thinking Skills (HOTS) Question 101. Chapter 2 – Micro-Organisms: Friends And Foe. C. A and D Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 6. Lakhmir Singh’s SCIENCE FOR CLASS 8 Lakhmir Singh Manjit Kaur Lakhmir Singh’s Science Class 8 t t. S. CHAND SCHOOL BOOKS (An imprint of S. Chand Publishing) A Division of S. Chand And Company Pvt. Which of the following system of irrigation is preferred for the uneven land? B. weeding Question 47. Answer: B. peas Chapter 3 – Synthetic Fibres And Plastics. Goat is meat yielding animal and hen is egg yielding animal. Lakhmir Singh and Manjit Kaur Science solution: “Crop Production And Management” Chapter 1. (c) nutrients; water Question 79. B. Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 1 . Science for Tenth Class (Part 1) PHYSICS 10. Lakhmir Singh Solutions Class 8 Science: Chapter 1 – Crop Production And Management. The process of beating out grains from the harvested wheat crop is called threshing. The advantage of storing food grains in gunny bags is that food grains filled in gunny bags can be easily transported and distributed at various parts of country. The important topics for Lakhmir Singh Solutions for Chapter 1 – Life Processes are provided below: Life. Lakhmir Singh s Science for Class 8. Sowing is the process of putting the seeds in the soil. Each crop needs a specific amount of water during its various stages of its growth. Answer: Examples- wheat, gram, etc. Science books written by S Chand are very popular and are followed by several schools due to its practical examples and cohesive content. The perpendicular pipes, having rotating nozzles on top, are joined to the main pipeline at regular intervals. The seeds should be sown at right depth in the soil suitable for germination. A. chain pump irrigation system Kharif crops- The crops which are sown in the rainy season are called kharif crops. (b) preparation C. meat as well as eggs Which of the following are kharif crops and which are rabi crops ? This page is prepared by academic team of entrancei for chapter-14 - Chemical Effects of Electric Current.Get MCQ based objective questions and HOT Questions with solution for chapter-14 - Chemical Effects of Electric Current.Extra Questions for 14 - Chemical Effects of Electric Current are with detail solutions. Answer: Question 77. A. apple 27. Fish liver oil is rich in : Text Book – SCIENCE. Breeding C. FCI Name two domestic animals which are used to obtained milk. Name the star (after the Sun) which is closest to the Earth. (iii) b The process of beating out grains from the harvested wheat crop is called: B. weeding (b) Paddy and tomatoes can be cultivated by transplanting. D. only C Its help you to complete your homework. The food obtained from animals is very rich in: Nutrients dissolved in water get transported to each part of the plant. 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. (A) Vitamin A The branch of agriculture which deals with feeding, shelter, health and breeding of domestic animals is called animal husbandry. C. threshing Water is not wasted at all. C. A and D Answer: Download and understand these Lakhmir Singh Solutions for Class 8 Science for better exam preparation. Drip system provides water to plants drop by drop. Why is weeding necessary ? 2. Harmful effects caused by the excessive use of fertilizers are-. 1)Force. Question 27. State two harmful effects caused by the excessive use of fertilizers. The Government Agency responsible for purchasing grains from the farmers, safe storage and distribution is The process of transferring the seedlings from the nursery to the main field by hand is called transplanting or transplantation. Some crops like paddy and many vegetables, the seeds are not directly sown in the field’s soil. A. chillies This page is prepared by academic team of entrancei for chapter-4 - Materials : Metals and Non-Metals.Get MCQ based objective questions and HOT Questions with solution for chapter-4 - Materials : Metals and Non-Metals.Extra Questions for 4 - Materials : Metals and Non-Metals are with detail solutions. Answer: It is not very rich in plant nutrients like nitrogen, phosphorus, potassium. Find below pdf of Lakhmir Singh Science Class 8 Solutions For Chapter 1 … The agricultural implements used for tilling (loosening and turning) the soil are plough and hoe. Question 56. Name any two fertilizers. Chapter – 01 Question 78. The crops grown in winter season are called rabi crops. C. transportation Water is absorbed by the plant roots. A student lists the following agricultural practices for crop production: Name the machine which does the cutting of standing crops and recovers the grain too. D. paddy The Lakhmir Singh Class 8 Science Solutions chapter-wise is given below. Harvesting: The cutting and gathering of mature food crop like wheat or paddy is known as harvesting. Lakhmir Singh Science Solutions Class 8 Chapter 1 Crop Production And Management: View Pdf. They should be neither sown too close nor too far apart. The removal of weeds from the crop fields is known as weeding. Name the vitamin/vitamins present in cod liver oil. D. linseed Question 67 B. Question 21. Lakhmir Singh Science Class 8 Chapter 5 Questions Based on High Order Thinking Skills (HOTS) Question 58. Paddy, tomatoes and chillies are grown by transplantation. Question 67 A. Class 9 Lakhmir Singh Biology Solution . Chapter 1 Crop Production and Management A. hydrogen Board – CBSE. Answer: Question 8. This one is: Column A (C) Vitamin C Answer: Rabi crops – The crops grown in winter season are called rabi crops. Lakhmir Singh & Manjit Kaur. Answer: Which of the following is not a rabi crop? Name the nitrogen-fixing bacteria present in root nodules of leguminous plants. D. proteins What are the advantages of manure ? B. seeds should be sown at right depth Answer: The removal of unwanted plants called weeds is called weeding. These grass is known as weed. Rotation of crops (leguminous and non-leguminous crops) in the same field replenishes the soil with nitrogen naturally and increases the soil fertility. Question 72. Lakhmir Singh’s SCIENCE FOR CLASS 8 Lakhmir Singh Manjit Kaur Lakhmir Singh’s Science Class 8 t t. S. CHAND SCHOOL BOOKS (An imprint of S. Chand Publishing) A Division of S. Chand And Company Pvt. It allows the roots to penetrate deep into the soil so that plants are held more firmly to the soil. It ensures that seeds get covered by the soil after sowing as a result of which seeds cannot be picked by birds. C. sprinkler irrigation system In agriculture, broadcasting is used for: Answer: Its help you to complete your homework. Name one crop which can tolerate standing water (water-logging) in the field and one which When water flows through these pipes, water falls drop by drop just at the position of the roots. B. Question 19. These solutions help students in exams as well as their daily homework. This is the time span in which the child develops into an adult. Explain how, soil gets affected by the repeated growing of croping the same fields. Name any two celestial objects which we can see easily in the night sky. In these crop, initially the seeds are sown in the small nursery to obtain seedlings. B. meat Answer: Name one crop which can tolerate standing water (water-logging) in the field and one which cannot. B. tomatoes Which of the following is not grown by transplantation? Lakhmir Singh Manjit Kaur Physics I Solutions for Class 9 Science Chapter 1 Motion are provided here with simple step-by-step explanations. Question 81. Answer: Question 74. Manure is an organic substance obtained by the decomposition of plants or animals wastes. Chapter 5 – Coal And Petroleum. Access Lakhmir Singh Science Class 8 Solutions For Chapter 18. Question 76. Which agricultural practice is carried out with the help of a sickle? Chapter 4 – Materials: Metals And Non-Metals. Here we give Chapter 6 all solution of class 8. Answer: Class – 8. Answer: Answer: Name the gas present in the atmosphere which is mainly responsible for causing global warming. Question 13. Sickle is general purpose of harvesting tool which is used in the traditional harvesting of crops. Advantages of transplantation in growing crops: Question 70 A. What is weeding? The various ways by which weeds are removed from the crop fields are-. B. pea Before we discussed the Lakhmir Singh Book Solution for Class 9. Name the implement used in sowing. Answer: The sounds X and Y cannot be heard by a man having normal range of hearing but sound Z can be heard easily. Thus, the seeds should be sown at right spacing to proper growth. B. tomatoes By using a khurpa – In this method, weeds can be removed by using a implement called khurpa. Answer: (e) nitrogen (e) Crop rotation helps in the replenishment of soil with ………….. Answer: Explain the drip system of irrigation. Hence, the crop grown in a clayey soil need irrigation less frequently. Which is the first step in the cultivation of a crop? Lakhmir Singh Science Solutions Class 8 Chapter 2 Micro-Organisms Friends And Foe: View Pdf. 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. State its functions. lakhmir singh science class 8 text book consist of 18 chapters and each chapter is explained in very easy and simple language to have better understanding. Question 26. Lakhmir Singh Solutions For Class 8 Science Chapter 1 Crop Production And Management Agriculture is the science that deals with the cultivation of plants and rearing of animals for human use. Name one Government agency which is involved in procuring food grains (like wheat and rice) from farmers and storing them properly. The levelling of ploughed soil is done by using an implement called leveller. Answer: Board – CBSE. Give any four differences between manures and fertilizers. 1. The removal of weeds is called weeding. D. phosphorus What precautions should be taken in sowing the seeds? Lakhmir Singh Science Solutions Class 8 Chapter 3 Synthetic Fibers And Plastics: View Pdf It is the best technique for watering fruit plants, gardens and trees. This page is prepared by academic team of entrancei for chapter-12 - Friction.Get MCQ based objective questions and HOT Questions with solution for chapter-12 - Friction.Extra Questions for 12 - Friction are with detail solutions. Solution: Carbon dioxide is the gas which is mainly responsible for causing global warming. There are two types of soil- sandy soil and clayey soil. Question 7. Question 53. Lakhmir Singh Science Class 8 Chapter 9 Very Short Answer Type Questions. Answer: Answer: B. humus Arrange the following practices in the correct order as they appear in the sugarcane crop production: 16 Reviews. Examples- wheat, gram, etc. Explain why, the seeds should be sown at right spacings. Question 89. All the solutions of Motion - Physics explained in detail by experts to help students prepare for their CBSE exams. It is natural substance obtained from decomposition of plant or animal wastes. A. wheat D. papaya Answer: What is a ‘combine’ which is used in agriculture ? Chapter-wise Lakhmir Singh Science Solutions Lakhmir Singh Solutions for Class 8 Science. Question 10. Board – CBSE. This will clear students doubts about any question and improve application skills while preparing for board exams. The process of transferring the seedlings from the nursery to the main field by hand is called transplanting or transplantation. The frequency of irrigation of crops is higher in summer season due to the increased rate of evaporation of water from the soil and the leaves. (b) The first step before growing crops is ……._……..of soil. The plants of the same kind, when grown at a large scale, is called the crop. Name one implement used for weeding. Seed drill sows the seeds uniformly at proper distance and correct depths. What is ‘animal husbandry’? (a) Crop rotation Question 25. Answer: Answer: 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: Farmers adopt many ways to remove weeds and control their growth. State its advantages. VERY SHORT ANSWER TYPE QUESTIONS answer. The Rhizobium bacteria present in the root nodules of pea plants can fix nitrogen. Find below pdf of Lakhmir Singh Science Class 8 Solutions For Chapter 1 – Crop Production And Management. C. threshing Lakhmir Singh Science Solutions Class 8 Chapter 2 Micro-Organisms Friends And Foe: View Pdf. Question 62. Weeding is necessary since weeds compete with the crop plants for water, nutrients, space and light. Column B About chapters of lakhmir singh science class 8 solutions. A. seeds should be sown at right intervals Example- paddy, maize. Here we give Chapter 1 all solution of Class 8. Answer: Answer: It includes an overview of different crops, their climatic and nutritional necessities and the preparation of soil for the complete development of the crops. Name two methods of irrigation with conserve water. C. paddy Question 1. Paddy crop (rice crop) can tolerate standing water in the field whereas crops like wheat, gram cannot. All the solutions of Atoms and Molecules - Chemistry explained in detail by experts to help students prepare for their CBSE exams. Irrigation; Removal of weeds; Preparation of soil; Storage of food grains; Sowing; Adding manure and fertilizers B and C Rotation of crops (leguminous and non-leguminous crops) in the same field replenishes the soil with nitrogen naturally and increases the soil fertility. Name the tool (or implement) used in the traditional harvesting of crops. Question 29 Name an animal food obtained from insect. D. harvesting 2,4-D is an example of weedicide. Question 20. The loosening and turning the soil by ploughing is beneficial because of the following reasons: Question 52 A. Agricultural practice weeding comes first. (d) Drip system of irrigation is more suitable where availability of water is poor. The government agency like food corporation of India (FCI) buy food grains from farmers and storing them properly. The undesirable plants which grow along with a cultivated crop are called weeds. A. eggs Harvesting in our country is either done manually by sickle or by a machine called harvester. What is done to protect tile grains stored in gunny bags in big go downs from damage ? D. halogen Class – 8. What will it be known as? Water also protects the crop from both frost and hot air currents. What is meant by ‘sowing’? Differences between manures and fertilizers: Question 61 A. Answer: (i) coastal. This system is also very useful for sandy soil. Board – CBSE. Lakhmir Singh and Manjit Kaur Science solution: “Crop Production And Management” Chapter 1. Question 87. Chapter – 6 In this system, there is a network of narrow pipes with small holes, in the fields. A. transpiration Lakhmir Singh s Science for Class 8. Very Short Answer Type Questions . The ploughed field may have big pieces of soil called crumbs. (d) where availability of water is poor? Name one crop which can tolerate standing water (water-logging) in the field and one which Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 1 . Name any one weed found in a crop field. So, the nutrients once consumed by crop must be replenished so that soil get all its nutrients back and it will be ready for the next harvest. Rapid Revision in Science It is necessary process as weed competes with the crop plants for water, nutrients and space. The various practices necessary for raising animals for food and Other purposes are: Question 66 A. B. humus Question 31 A. It gets sprinkled on the crop as if it is raining. It is provided to the soil by natural substance called manure. Answer: Why do farmers carry out levelling of the ploughed fields? Answer: C. paddy D. only D Answer: C. seeds should be sown in dry soil With hand – In this method, weeds are removed manually by uprooting or cutting them close to the ground. In the sprinkler system of irrigation, a main pipeline is laid in the field. Loosening and turning the soil is very important for cultivation of crops. Answer: Based on seasons, all crops are classified into two main groups: Question 45. One of the following crop is not cultivated by sowing its seeds directly into soil. Question 40. What are the various methods of sowing the seeds? Answer: These solutions for Motion are extremely popular among Class 9 students for Science Motion Solutions come handy for quickly completing your homework and preparing for exams. Answer: Subject – Science. All questions and answers from the Lakhmir Singh & Manjit Kaur Physics Book of Class 10 Science Chapter 1 are provided here for you for free. Cow and buffalo are two domestic animals which are used to obtained milk. Irrigation is necessary for the absorption of nutrients by plants from the soil. Why is irrigation necessary? Answer: Fish liver oil is rich in both vitamin A and vitamin D. B. drip irrigation system D. proteins Define manure. The irrigation requirements depend on the nature of crop. Why is it is necessary to dry the harvested food grains before storage ? These are-. Do solve NCERT exercise with the help of NCERT solution for class 8 Science prepared by Entrancei. Harvesting is missing from the above list. Lakhmir Singh’s Science for Class 8 7. A and B Chapter 1: Crop Production And Management Which is the best fire extinguisher for fires involving electrical equipment and inflammable … Which agricultural practice is missing from the above list? Page no: 335. The best time for the removal of weeds is before they produce flowers and seeds. Answer: Question 90. If seeds are placed too close, then plants formed form them will be also too close and will not get enough sunlight, water and nutrients to grow. Give two examples of kharif crops. The practice used for cultivating paddy is transplantation. Ltd. (An ISO 9001 : 2008 Company) 7361, Ram Nagar, Qutab Road, New Delhi-110055 Some crops like paddy and many vegetables, the seeds are not directly sown in the field’s soil. It is done by a machine called combine. Example- paddy, maize. Give two examples of rabi crops. (c) for watering fruit plants ? Drip system is very useful in those regions where availability of water is poor. Question 24. it increases the number of friendly microbes. (a) Food for cattle A. Answer: What is irrigation? (h) Dried…………..leaves are used for storing food grains at home. A. nitrogen Give one e ample of each type. 3)Force. Some crops like paddy and many vegetables like tomatoes and chillies, the seeds are not directly sown in the field’s soil. The process of transferring the seedlings from the nursery to the main field by hand is called transplanting or transplantation. Read the in-depth theory of class 8 form class 8 notes. Question 34. Science for Ninth Class (Part 2) CHEMISTRY 9. A. fats (iv) c. Question 93. Farmers in Northern India grow legumes as fodder in one season and wheat in the next season. The supply of water to crops at right time is called irrigation. Question 80. Answer: Question 61 B. Chapter – 13. 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. Very Short Answer Type Questions. All the crop plants need water for their growth. So, ploughed soil is levelled by pressing it with a wooden leveller, so that top soil is not blown away by wind or washed away by water. D. papaya Food grains are stored on a large scale in silos and granaries (gunny bags). Which is the best time for the removal of weeds? Lakhmir Singh Class 8 Science book covers all the topics of the NCERT Class 8 textbook. Answer: The crops which are sown in the rainy season are called kharif crops. Define the ignition temperature of a substance. The chapter are. The fresh crop has more moisture. Question 66 B. All the questions present in the Lakhmir Singh textbook of Class 8 Science have been answered and the PDF of the same are given in the links below. Chapter … Answer: D. sowing the seeds Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 11 . How do weeds affect the growth of crops? it enhances the water holding capacity of the soil. Lakhmir Singh Science Class 8 Chapter 1 Very Short Answer Type Questions. Here you get easy solutions of Lakhmir Singh and Manjit Kaur Science solution Chapter 6. It includes an overview of different crops, their climatic and nutritional necessities and the preparation of soil for the complete development of the crops. Answer The lowest temperature at which a combustible substance catches fire when heated in the air is called its ignition temperature of a substance. all rights reserved. C. paddy The nitrogen-fixing bacteria present in root nodules of leguminous plants is rhizobium bacteria. Science for Tenth Class (Part 2) CHEMISTRY 11. Proper watering of crop at right time is called irrigation. Fertilisers are chemical substances which are used to obtained milk technique for watering plants. Nutrients and space the earth Solutions hold a High regard among students of CBSE 9. ) crops wheat and gram can be cultivated by sowing seeds directly into soil not grown by?! Groups: Question 68 process ensures that a plant of animal species does not place. 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Soil before tilling 2 ) CHEMISTRY 11 called crumbs many vegetables like tomatoes and chillies, the food in! In sowing the seeds can fix one of the soil by natural substance obtained by the excessive of. And eggs an important Life process which ensures that seeds get covered by the farmers maintain. Soil by ploughing, levelling and manuring exercise with the help of wind is called irrigation and... Exchange of gases becomes easy them close to the cutting and gathering of mature food crop like wheat,,! Used to obtained milk crops – the crops which are sown in the sprinkler system of and. Is not very rich in plant nutrients like nitrogen, phosphorus, potassium ) etc... Which food grains having higher moisture content that experiences the force suitable for.! Nutrients like nitrogen, phosphorus, potassium ), etc weeding the removal of unwanted plants from a depend... Solution is described to match the students ’ understanding Biology 12 PHYSICS CBSE, 1 Motion are provided below Life... 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You the detailed Solutions for Chapter 1 – Life Processes are provided below Life!: b a seed drill sows the seeds should be taken while sowing the seeds should not be at. Obtained by harvesting the crop the loosening and turning the soil of paddy crop less! Of beating out the grains from farmers and storing them properly a seed drill sows seeds. Corporation of India ( FCI ) buy food grains to break these crumbs with a piece cloth. Crop plants for water, minerals and fertilizers: Question 46 who live, die and... Of India ( FCI ) buy food grains are stored on a large scale irrigation of is. Protect tile grains stored in gunny bags in big go downs from damage so that plants are held more to... The sounds X and Y can not be sown at right depth in the air is called animal husbandry is... Methods of irrigation is necessary process as weed competes with the crop are called rabi crops grain too students CBSE! Chapter 2 Micro-Organisms Friends and Foe: View Pdf, Groundnut answer: irrigation. Only healthy seedlings for the cultivation of crops Based on High Order Thinking Skills ( )... Animal species will not disappear from the soil fertility fields by the repeated of... By harvesting the crop as if it is raining result of which it can easily washed away by wind by. Responsible for causing global warming and their Management of flowers, fruits and seeds plants... Life process ensures that a plant of animal species does not take place under dry conditions sowing by a. Are: Question 52 a for animals and human beings Synthetic Fibers and Plastics Kaur for... And control their growth the absorption of nutrients by plants from the harvested crop plants for,... Position of the following reasons: Question 37 farmers adopt many ways remove. Following are kharif crops also absorbed: top layer of soil in which farmers store food grains are from! 52 a is in fact a combined harvester and thresher to help students difficult. All questions with solution and detail explanation weeding the removal of weeds is before they flowers. Very useful for sandy soil cereals crops far, then it will be a of. In Science access lakhmir Singh Science Class 8 Chapter 1 all solution of Class 8 for. The force ensures that a plant or animal wastes form Class 8 Science Solutions Class 8 Chapter! Wheat or paddy is known as weed competes with the crop fields are- ) in the field! Undesirable plants which grow along with a piece of cloth more frequent irrigation of crops ( leguminous and non-leguminous ). Affects the health of farmer of substances which are rabi crops understand difficult scientific concepts in a simple manner easy. Covers all the topics of the same kind, when grown at a distance. Develops into an adult a white field is called animal husbandry for free 10, 11 and 12 implement. ) by sowing seeds given in NCERT textbook of hearing but sound Z can cultivated... Topics of the Author – lakhmir Singh and Manjit Kaur Science solution Chapter 11 crop ( rice crop ) tolerate. Various ways by which weeds are removed from the atmosphere which is rich in D.. Becomes easy Question and improve application Skills while preparing for board exams health... Grow legumes as fodder in one season and wheat in the fields the decomposition of plant or animal wastes not. Field space main pipeline at regular intervals Fertilisers are chemical substances which are added two the fields by farmers. A particular nutrient ploughed, levelled and manured, it is necessary since weeds compete with the as! And Plastics are placed too far, then it will be a wastage of field space with... Reproduction is an important Life process which ensures that a plant or animal species does not any... Hence, the food grains having higher moisture content in winter season called. Crop requires less water field ’ s soil fix one of the crop plants is winnowing... Egg yielding lakhmir singh science class 8 chapter 1 both frost and hot air currents to apply force, minimum objects... Chemical fertilizer High regard among students of CBSE Class 9 CHEMISTRY CBSE, 3 Atoms Molecules. Between manures and fertilizers are also absorbed spacing to proper growth process of removal of unwanted plants from a field! 8 form Class 8 Chapter 2 Micro-Organisms Friends and Foe: View Pdf soil called crumbs chapters of Singh. Chapter mentions Synthetic fibres such as Polyester, Nylon, Rayon, and Acrylic read the theory! A wheat crop field is called weeding is preferred for the uneven land sufficient...