Chapter 2 Class 8 - Microorganisms : Friend and Foe

Learn the chapter Microorganisms: Friend and Foe with Notes, solutions to NCERT Questions and Extra Questions. It is Chapter 2 Class 8 Science of the NCERT Book.

In this chapter, we will learn

• What are Microorganisms?
• Different Types of Microorganisms - like Bacteria, Protozoa, Algae, Fungi and Virus. Their figure, examples and definition are also explained
• Then, we will learn about some basic facts about them. Like
  • Are microorganisms unicellular or multicellular
  • Where do microorganisms live
  • Are microorganisms good for us, or are bad for us?
• Some important uses of Microorganisms - in making curd, bread, alcohol, medicines, agriculture
• Harmful Microorganisms like Pathogens - which causes diseases in Humans, Animals and Plants
• The Disease caused by microorganism, which microorganisms caused it, and how is it transmitted
• Then, we will learn about Food Poisoning
• A basic introduction about Food Preservation
• And finally, we will learn about what is Nitrogen Fixation
• And What Nitrogen Cycle is

In addition to this, we have added some important questions... which you can check in the Extra Question section below.

Click on a link below to start doing the chapter