NCERT Solutions for Class 8 Science Chapter 2
Important NCERT Questions
8th Chapter 2 Microorganisms: Friend and Foe
NCERT Books for Session 2022-2023
CBSE Board and State Bord
Questions No: 7
Write 10 lines on the usefulness of microorganisms in our lives.
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Microorganisms are too small to be seen through naked eyes. However, they are vital to plants and the environment.
https://www.tiwariacademy.com/ncert-solutions/class-8/science/chapter-2/
Microorganisms are too small to be seen through naked eyes. However, they are vital to plants and the environment.
Importance of microorganisms:
• They are used in winemaking, baking, pickling and other food making processes.
• Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.
• A bacterium lactobacillus promotes the formation of curd.
• Microbes are used to reduce pollution.
• They are used to increase the soil fertility by fixing the atmospheric nitrogen.
• Microbes are also useful in preparing many medicines and antibiotics.
• Certain microbes are also used in the biological treatment of sewage and industrial effluents.
https://www.tiwariacademy.com/ncert-solutions/class-8/science/chapter-2/
Microorganisms, tiny living beings not visible to the naked eye, are super helpful in our lives:
1. Cleaning the Environment: They break down garbage and waste, keeping our surroundings clean.
2. Making Yummy Food: Microbes like yeast and bacteria help make foods we love, such as bread, cheese, and yogurt.
3. Keeping Us Healthy: Some good microbes in our bodies help us digest food and protect us from bad germs.
4. Helping Plants Grow: Certain tiny organisms in the soil provide food for plants by changing the air’s nitrogen into a type plants can use.
5. Fixing Dirty Spots: Microbes are used to clean up oil spills and pollution, making nature healthier.
6. Creating Useful Things: They’re used in labs to make medicines, fuels, and other helpful stuff.
7. Treating Dirty Water: Microbes help clean wastewater so that it’s safe to reuse.
8. Being Nature’s Helpers: Microbes help in recycling nutrients in nature, making sure everything stays in balance.
9. Doing Important Jobs: They work in industries to make things like enzymes and materials we use daily.
10. Teaching Us About Life: Studying microbes helps us understand how life works and how tiny things can have big impacts.
Microorganisms might be small, but they do really big things that help us every day!