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Question
Why should we avoid standing dose to a tuberculosis patient while he/she is coughing?
Solution
Tuberculosis is an air-borne disease, which is easily spreads when the infected person coughs. As coughing spreads germs in the air and these germs remain suspended in air until inhaled by person present in promixity of the patient who is suffering from the disease. That is why we should avoid standing close to a TB patient.
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Long Answer Question:
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Match Column - I with Column - II.
| Column - I | Column - II | ||
| (a) | Nitrococcus | (i) | Denitrification |
| (b) | Rhizobium | (ii) | Conversion of ammonia to nitrite |
| (c) | Thiobacillus | (iii) | Conversion of nitrite to nitrate |
| (d) | Nitrobacter | (iv) | Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below.
The bacteria present in the root nodules of leguminous plants is ______.
The blue-green algae that take part in nitrogen fixation are also called ______.
Nitrogen is an essential component of protein, DNA, and chlorophyll.
How are organisms like Pseudomonas and Thiobacillus of great significance in nitrogen cycle?
