Question

how you can say that microorganisms are our friends or foes with appropriate reason?

Answer 1

microorganisms can be our friends as well as our foes.Some of them are known to benefit us while others can cause harm by causing diseases. For eg- Microorganism lactobacillus is found in curd without it we won't be able to get curd ,cheese ,etc .On the other hand ,microorganisms like bacteria ,viruses are known to cause diseases like chicken pox ,influenza ,etc.

Answer 2

microorganisms are our friends as well as foes, some microorganisms are known for our benefits and some for our loss. such as bacteria that causes harmful diseases like typhoid, tuberculosis, etc, and some bacteria are also present in our digestive system which help to digest our food.