NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. D. increasing the fertility of soil Why should we not let water collect anywhere in the neighbourhood? May 21, 2019. Mr. Rajiv Anand has opened a recurring deposit account of Rs. A. Alexander Fleming Answer: Question 67 B. Answer: C. bacteria How do you preserve cooked food at home? Next it is chilled very fast to prevent bacteria from growing. Of these, the bacterium Lactobacillus promotes the formation of curd. from Miranda House, Delhi and also obtained a B.Ed. Question 26. After consuming a dish of mutton, a person complained of nausea, vomiting, diarrhoea, and pain in the abdomen. Female Anopheles mosquito carries the parasite of malaria. The carrier of parasite of malaria is Female Anopheles mosquito. Question 19. Subject – Science. Question 25. When a small amount of pre-made curd is added into warm milk, then lactobacillus bacterium present in curd multiplies in milk and converts it into curd. B. polio NCERT Solutions of Class 8 Science of Chapter 16 includes solutions of all 17 questions given in your NCERT book. How does Air Get Polluted are some of the significant topics discussed in this chapter. Housefly is most common carrier of communicable diseases. The bread dough rises because of: A. female anopheles (f) The food material which is preserved by pasteurization is …………….. Question 83. Name two food materials which are preserved by sun-drying method in our homes. Keep the infected person separated from others & advice him/ her to keep a handkerchief on the nose and mouth while sneezing. The acetobacter bacteria is then added to alcohol. Question 80. Malaria and dengue spread by mosquitoes. Students can download the PDFs easily by clicking the links below: Lakhmir Singh Solutions for Class 8 Science; Lakhmir Singh Chapter Wise Solutions – Download Free PDF. S.Chand’s Science Book-8 B K Gowel. Micro-organisms are too much smaller that they cannot be seen with naked eye. S Chand Science Class 8 Solutions is a guide for students to learn important questions from every chapter. Answer: Answer: Social Science. What are micro-organisms? Question 29. Yeast is used for commercial production of alcohol and wine. Yeast – Fungi ; Its help you to complete your homework. Which of the following increases the fertility of soil C. tuberculosis Viruses are too much smaller in comparison to other micro-organisms. State the beneficial effects (or usefulness) of micro-organisms in our lives. Name two food materials which are usually preserved by deep freezing. Some of micro-organisms are used recycling of materials in nature and increasing the fertility of soil. Class 8 Science Lakhmir Singh Book Solution Short Questions, Long Questions, MCQ Questions Solution and discussing. They do not show most of the characteristics of the living organisms like respiration. Question 40. Answer: C. growth of yeast cells A. heat D. spider The human diseases such as common cold and influenza are caused by viruses. Food can be preserved using following methods: Question 54 B. Answer: Bubbles of the gas fill the dough and increase its volume. NCERT text book questions and answers help you to get thorough understanding of the concepts. Chapter 3: Synthetic Fibres and Plastics. (b) setting of curd Lakhmir Singh Science Solutions Class 8 Chapter, Lakhmir singh and manjit kaur Rhizobium bacterium is found in the soil. Vaccination is the process of giving a vaccine orally or by injection which gives protection against a particular disease. Question 18. Amoeba, Lactobacillus, Chlamydomonas, Penicillium, Yeast, HIV These nitrogen compounds combine with rainwater to form nitric and nitrous acid which mix with the soil. Name the scientist who discovered fermentation. (g) As a result of nitrogen cycle, the percentage of nitrogen in the atmosphere remains more or less……. Answer: (g) constant. C. malaria The S Chand Science Solutions for Class 8 have been explained in such a manner that it helps students to know the concepts with ease. Answer: C. alga Important Keywords. All the questions has been solved by experts and explained in detail. S Chand ICSE Solutions for Class 10 Maths Banking Exercise 2: Ques No 1. Question 45 B. Subject – Science. Question 57. Author: Lakhmir Singh & Manjit Kaur. (c) Protozoa – (I) Amoeba (II) Paramecium What type of plants can fix nitrogen gas of the air into compounds of nitrogen? A. D. Kneading Genius Teacher is India’s best quiz-based learning app. Answer: Jams and jellies are preserved by using sugar. Name the disease caused by HIV. Lakhmir Singh Class 8 Science Chapter 2 Micro Organisms Friends And Foe Solutions give students an advantage with practical questions. In this process, first alcohol is produce by using yeast. They just reproduce. OP Malhotra Differentiation S.Chand ISC Class-12 Maths Solutions Ch-8. From Delhi University in yr 1970. Answer: Question 91. best reference books for class 11 cbse vagupu com. Answer: Answer: (b) Micro-organisms like bacteria and fungi present in the spoilt dish of mutton causes the disease, food poisoning. D. yeast S Chand Class 8 Science Chapter 2 Micro Organisms Friends And Foe Solutions are free of cost for the students. A neat, labelled diagram of the nitrogen cycle in nature is shown below: D. B and D Low temperature inhibits the growth of micro-organisms completely. C. malaria A. measles (vii) penicillium What is the full form of HIV? All updated in a single page. NCERT Solutions for class 9 provide you with a quick way to complete your homework. For any kind of problem regarding understand for any question please comment us. New Inquisitive Science Book-8 Dr. Kiran Ashok Kumar. If student do exam preparation from these reference book, this book help the student to score very good marks. Can micro-organisms be seen with the naked eye? Lakhmir Singh Solutions for CBSE Class 8, 9, 10 for the academic year 2020-21 are provided at BYJU’S. The Lakhmir Singh Science Chapter 2 Micro Organisms Friends And Foe Solutions Class 8 can help you make your concepts strong with the help of questions having a different level of difficulty. (b) Citrus canker Name one animal disease each caused: Question 56. Question 79. Become our. Yeast is used for commercial production of alcohol and wine. Some bacteria and blue green algae present in the soil and rhizobium present in the root nodules of leguminous plants can fix atmospheric nitrogen. Name one disease which spreads through insect bites. A. viruses Answer: Published: 2016. When it bits a person suffering from malaria, it sucks the blood of that person which contains the malarial parasite microbes. Answer: The main aim of writing this series is to help the learners understand difficult scientific concepts in a simple manner in easy language. Medium – English Medium. Question 76. Question 46 B. Eukaryotic. (a) Foot and mouth disease Question 7. Draw a neat, labelled diagram of nitrogen cycle in nature. Lakhmir Singh’s Science Teacher’s Resource Kit For Class 6 – Lakhmir Singh’s Science is a series of books for Classes 1 to 8 which conforms to the NCERT syllabus. Question 4. C. protozoa solution. Free PDF download of Lakhmir Singh Science Solutions Class 8 Chapter 2 Micro-Organisms: Friends and Foe solved by Expert Teachers as per NCERT (CBSE) Book guidelines. When the vaccine containing dead or weakened microbes is introduced into the body of a healthy person, the body fights and kills the microbes by producing some substance called antibodies. 400 per month for 20 month in a bank. Class 9 - Maths+Science; Class 9 - Science; Class 9 - Mathematics; Class 9 - Science+Maths Video Paper Solutions; Class 10. Not only do these Lakhmir Singh Class 8 Science Chapter 2 Micro Organisms Friends And Foe Solutions strengthen students’ foundation in the subject, but also provide them with the ability to tackle various types of questions easily. In this chapter you will study about air pollution and water pollution. solution, icse-allied publishers A. protozoa The first antibiotic called penicillin was extracted from: Louis Pasteur Discovered fermentation in 1857. This antibiotic was made from the fungus called penicillium. A. sugar Question 22. Answer: Name one plant disease each caused: Answer: (i) e; We preserve cooked food in the refrigerator at home. This antibiotic was made from the fungus called penicillium. (f) Causing AIDS Yeast is used in baking industry for making bread. Answer: The micro-organism which is capable of converting sugar into alcohol and carbon dioxide is: B. fungus Lakhmir Singh Science Class 8 Solutions: Lakhmir Singh and Manjit Kaur Science Class 8 Solutions free pdf download are available here.S Chand Science Class 8 Solutions are series of books which conforms to the NCERT syllabus. Which natural phenomenon occurring in the sky is responsible for nitrogen fixation? C. fermentation The process of conversion of sugar into alcohol is called: D. fungus Question 27. Question 17. Question 90. Vaccine consists dead and weakened microbes which are harmless and do not cause any disease. D. citric acid Name one disease which spreads through infected food or water. Degree from Delhi University. Question 23. Lactobacillus bacterium is utilized in making curd from milk. She graduated with a B.Sc. It's All About Science Physics Class 8 R P Rana. (e) fungi. It increase the volume of dough. Answer: B. typhoid (v) d ; Question 60. 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