Question

Write 10 lines on the usefulness of microorganisms in our lives.
Write a short paragraph on the harms caused by microorganisr​

Answer 1

Explanation:

Rhizobium present in the roots of pulse plants fix nitrogen from the air and supply nitrogen compounds to the pulse plants. Micro-organisms are also used in winemaking, baking, pickling, and other food-making processes. Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.

and........

Some bacteria transforms harmful substances into simpler harmless substitutes. Some microorganisms are harmful and even cause diseases in both plants and animals. They helps in decaying fruits, vegetables and other food items in plants. In human, it can cause many diseases such as typhoid, diarrhea, cholera etc.

Answer 2

Answer:

They help us in following ways: (i) Microorganisms help us in food sector. They are used for curdling of milk, preparation of bread, cake, etc. ... (vii) Microorganisms are used to prepare vaccines for various diseases. (viii) They are useful for agriculture sector, as they enhance the fertility of soil by fixing nitrogen

Some bacteria transforms harmful substances into simpler harmless substitutes. Some microorganisms are harmful and even cause diseases in both plants and animals. They helps in decaying fruits, vegetables and other food items in plants. In human, it can cause many diseases such as typhoid, diarrhea, cholera etc.

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