Question

Answer the following in one word:-

1. Disease causing microorganism is also called a-

2. Organism that fixes nitrogen in plant roots-

3. A method of preserving food-

4. The process of conversion of sugars into acid or alcohol-

5. Organism on the borderline of living and non-living-

6. These can be only seen with a microscope-

7. Citrus canker is caused by this bacterium-

8. The first antibiotic penicillin was made using this fungus-

9. Medicines prepared from microorganisms to treat diseases -

10. The process of preserving milk by -

11. This animal is known as farmer’s friend -

12. A kharif crop that is also a cereal-

13. Providing water to the plants-

14. Plants of same kind grown on a piece of land on a large scale-

15. Reaping the crop at maturity-

16. These provide nutrients to the soil but may cause pollution-

17. Process of separating grain from chaff-

18. Type of plant used for crop rotation-

19. Bacteria can fix this element -

20. Manual scattering of seeds-

Answer 1

1)pathogens
2)parasponia
3)canning process
4)ethanol fermentation
5)viruses
6)Microorganisms
7) xanthomonas axonopodis

Answer 2

1) pathogen
2) rhizobium bacteria
3) food preservation ( pasteurization )
4) fermentation
5) viruses
6) microorganisms
7) xanthomonas axonopodis
8) penicillium
9) { the answer may differ according to the microorganism used for making the medicine}
10) pasteurization
11) earthworms
12) maize
13) irrigation
14) crop
15) harvesting
16) fertilizers
17) winnowing
18) rotating crops (eg : legumes )
19) nitrogen
20) broadcasting



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