write short note microorganism
Micro organisms are both friend and foe to us as there are both useful and harmful microbes. Some of them such as yeast can be used for making cake. And the antibiotic medicines that we get when we are ill are made from micro organisms. Microbes also convert nitrogen into solid form in which the plants can take in and so this is helpful for the plants. On the other hand they can be harmful as well as they are the cause for various diseases. They can even cause diseases in animals and plants. Food and crops also often gets destroyed by microbes. Therefore, micro organisms are both friend and foe.
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uh..sorry about posting it 3 times....