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Answer: A substance which kills or stops the growth of bacteria is called antibiotic. (B) Blue green algae fix _____directly from air to enhance fertility of soil. Microorganisms Type: These Microorganisms … Videos. Microorganisms : Friend and Foe . The answer is no! Small pox, chicken pox, hepatitis A, AIDS, etc. Harmful microorganisms can be hazardous to the body as they cannot be seen by naked eyes. Revise with Concepts. 8. Materials : Metals and Non-Metals. Microorganisms - NCERT Guide Science Class 8. Where are microorganisms found??? Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 8 Science Microorganisms - Friend and Foe. Class VIII - Science Chapter 2 - Microorganisms: Friend and Foe Other Chapters Crop Production and Management. Blue green algae fix _____ directly from air to enhance fertility of soil. Study Materials Nitrogen Cycle: Definition, Steps, Importance and Solved Example. The entire NCERT textbook questions have been solved by best teachers for you. (c) Alcohol is produced with the help of _____ (d) Cholera is caused by _____ Answer: (a) microscope (b) nitrogen (c) yeast (d) bacteria. CBSE Class-8 keyboard_arrow_right; Science keyboard_arrow_right; Microorganisms: Friend and Foe keyboard_arrow_right; World of Microorganisms . Food, water, direct contact and insects etc. Answer: A microorganism is a living thing that is too small that it can’t be seen with the naked eye. Question 1. Get ideas for your own presentations. Thus, this chapter will help, to an extent, in clearing this matter. Subscribe to Don't Memorise & get access to 11 videos of class 8 science chapter microorganisms. 3 mins read . Chapter 2 Class 8 - Microorganisms : Friend and Foe. arrow_back World of Microorganisms. Microorganisms: Friend and Foe Class 8 Extra Questions Short Answer Questions. Microorganisms: Friend and Foe Class 8 Science NCERT Textbook Questions. 7 mins. 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Answer: The sequence of events by which nitrogen is channelized to the living world and back to atmosphere is called nitrogen cycle. NCERT Solutions For Class 8 Science Chapter 2: In this article, we will provide you with detailed, step-by-step NCERT Solutions for Class 8 Science Chapter 2 – Micro-organisms: Friend and Foe.All the NCERT Solutions provided in this article are solved by top teachers and experts at Embibe. Summary. arrow_back Dealing with Harmful Microorganisms. Topics in the Chapter • Introduction • Microorganisms • Classifications of microorganisms • Food Preservation • Methods of food preservation → Chemical methods → Heat and cold Treatments → Storage and Packing • Importance of microorganisms → In food industry → In beverage industry → In me Videos. Microorganisms : Friend and Foe . class eight science microorganisms friend or foe extra questions and answers Define microorganisms with two examples. 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