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Question
Explain the harmful effects of micro-organisms.
Solution
Microorganisms are not always beneficial can lead to various kinds of damage. This damage can be in terms of health of humans and animals, crop production etc. There are various kinds of microorganisms which are known to cause disease in humans and animals.
| Human disease | Pathogen |
| Tuberculosis | Bacteria |
| Measles | Virus |
| Chicken pox | Virus |
| Polio | Virus |
| Cholera | Bacteria |
| Typhoid | Bacteria |
Similarly there are certain species of microorganisms which cause disease in plants and affect the crop productivity.
| Plant disease | Pathogen |
| Citrus canker | Bacteria |
| Rust of wheat | Fungi |
| Yellow vein mosaic of bhindi (okra) | Virus |
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