Write 10 lines on usefulness of microorganisms in our lives

cbse
microorganisms
cbse-class-8-science
friend-and-foe

#1

Write 10 lines on the usefulness of microorganisms in our lives.

Answer:
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 wine making, 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. For example, decomposers such as bacteria and fungi break down dead bodies and excreta to form inorganic compounds, which can be absorbed by plants. They are used to increase the soil fertility by fixing the atmospheric nitrogen with the help of bacterium Rhizobium and some other blue- green algae.
Microbes also play an important role in the preparation of medicines. Antibiotics are chemicals produced by microorganisms to kill bacteria. Streptomycin, for example, is an antibiotic. Certain microbes are also used in the biological treatment of sewage and industrial effluents.