Give one word answer for the following...
1. Conversion of nitrates in soil to gaseous nitrogen
2. Microorganisms that cause diseases in humans, plants and animals
3. Substances that produce immunity artificially and are given to protect a person
from diseases
4. Diseases that spread from one person to another
5. The period between the infection and the appearance of symptoms
Answers
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1
Answer:
1. Denitrification
2. Microbes (most commonly Bacteria, Fungi, Protozoa and Viruses)
3. Most probably Vaccine.
4. Communicable Diseases.
5. Incubation.
Good luck!
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