Must known MCQ on Microorganisms: friend & foe class 8 - Science l Microorganisms mcq

Must known MCQ on Microorganisms: friend & foe class 8 - Science "MCQs on Crop Production & Management - Solving MCQ questions l chapter 1 of class 8":    • "MCQs on Crop Production & Management - So...   In this video we tried to cover variety of mcq questions to support students preparing for CTET, TET, CBSE students. *Microorganisms are the organisms which can not be seen with the bare eyes but only with the help of microscope. *Microorganisms are broadly classified into four types 1)Bacteria 2)fungi 3)Protozoa 4)algae. *They can be unicellular or multicellular. *They can found in all types of climatic conditions ranging from ice cold temperature to hottest temperature, deserts to marshy lands. *They have a wide variety of applications 1]Helpful in making curd & bread 2]Helpful in medical field in the preparation of vaccines & antibiotics 3]Helpful in increasing the soil fertility. The bacteria rhizobium & blue green algae are involved in this. 4]Used in the manufacturing of wine, alcohol & vinegar. Fermentation process is involved in this. 5]They are helping in cleaning the diseases. On the contrary they are also harmful for both plant and animals (humans) *They cause human diseases like: malaria, cold, flu, typhoid, tuberculosis, AIDS, Hepatitis A, Hepatitis B, Measles, polio, mumps, chicken pox, anthrax. *They cause plant diseases like: Citrus canker, wheat rust & Yellow mosaic of bhindi (okra) *They cause animal diseases like: Foot & mouth disease, Anthrax. They damage the leather, clothing & Spoil the food. Thus we use preservatives to preserve the food for longer time.