Question

What do we say that all microorganisms are not harmful

Answer 1

All microorganisms are not harmful as some pf them also act like our friends and helps us in our routine.

for eg.

1. They are useful in curd formation as lactobacillus converts milk into curd.
2. They help in decomposition pf biodegradable materials.
3. Microorganisms present in alimentry canals of some animals alao help in digestion of their food.
4. They also help in fuel formation.for eg. some microorganisms produce ethanol by fermentation of sugar.
5. They also help in agriculture by converting nitrogen gas into useble nitrogen salt for planets.

Answer 2

Hope this answer will be helpful for you