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LAKHMIR SINGH & MANJIT KAUR-MICRO - ORGANISMS : FRIEND AND FOE.-EXERCISE
- Name two leguminous plants which can fix nitrogen.
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- Fill in the blanks with suitable words : a) Alcohol is produced with...
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- Fill in the blanks: Blue green algae fix directly from air to enhan...
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- Fill in the blanks with suitable words : c) Micro - organisms can be...
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- Fill in the blanks with suitable words : d) Cholera is caused by ………
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- Fill in the blanks with suitable words : e) Common salt has been use...
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- Fill in the blanks with suitable words : f) The food material which ...
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- Fill in the blanks with suitable words : g) As a result of nitrogen ...
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- How do viruses differ from other micro - organisms such as bacteria ?
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- What are micro - organisms ? Give any two examples of micro organisms.
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- Can microorganisms be seen with the naked eyes? If not, how can they b...
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- How do houseflies carry disease - causing microbes ( or pathogens) ?
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- State any two ways of preventing diseases spread by houseflies.
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- How do mosquitoes carry disease - causing micro - organisms and sprea...
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- Mention any three ways of preventing diseases spread by mosquitoes.
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- What is meant by fermentation ? Name the scientist who discovered ferm...
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- Which micro - organism converts sugar into alcohol during fermentation...
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- How do micro - organisms help in increasing soil fertility ?
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- How do micro - organisms help in cleaning the environment ?
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- What are antibiotics? What precautions must be taken while taking anti...
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