IV. True or False
State whether the given statements are true or false.
1. Microbiology is the science of study of microbes.
2. All the microorganisms are harmful.
3. An instrument called microscope is required to see the microorganisms
4. Bacteria have an organised nucleus.
5. Microorganisms are found in large number around us.
6. Viruses are the most useful microbes.
7. Anabaena is listed in the category of algae.
8. Algae tend to develop on wet surfaces.
9. Amoebic dysentery is caused by algae.
10. A fungi is used in the production of alcohol.
11. Jellies, jams and squashes are preserved by adding vinegar to them.
12. Salt is used as a food preservative.
13. Oxygen alone constitutes 78% of air.
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Answer:
1. true
2.F
3. T
4. T
5. T
6. F
7. T
8. T
9. F
10. F
11. T
12. T
13. F
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