Question

20 harms caused by microorganisms

Answer 1

Harmful Microorganisms. ... Microorganisms include bacteria, algae, fungi, archaea, viruses, and protozoa. They are very small but they can cause diseases and even lead to death. Some of them are free-living but some are parasites. Thus knowledge of sources and effect of microbes are important to defend them.

Microorganisms can prove very harmful to us, as they cause a number of diseases in human, plants and animals. Diseases in humans like common cold, tuberculosis, measles, chicken pox, polio, cholera, typhoid, hepatitis B, malaria, etc. are caused by microorganisms.