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प्रश्न
The gases produced in anaerobic sludge digesters are _______.
विकल्प
Methane, oxygen and hydrogen sulphide
Hydrogen sulphide, methane and sulphur dioxide
Hydrogen sulphide, nitrogen and methane
Methane, hydrogen sulphide and CO2
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उत्तर
The gases produced in anaerobic sludge digesters are Methane, hydrogen sulphide and CO2.
संबंधित प्रश्न
Alcoholic fermentation is brought about by ______.
Give the microbial source of Vit. B12
What are A, B, C, and D in the table given below :
| Types of microbe | Name | Commercial product |
| Fungus | A | Penicillin |
| Bacterium | Acetobacter aceti |
B |
| C | Aspergillus niger | Citric acid |
| Yeast | D | Ethanol |
Identify the diagram given below.

Brandy is generally a product of:
Which one of the following alcoholic drinks is produced without distillation?
Match the antibiotics in column I with their microbial sources in column II:
| Column I | Column II |
| (a) Chloromycetin | (1) Streptomyces griseus |
| (b) Erythromycin | (2) Streptomyces aurifaciens |
| (c) Streptomycin | (3) Streptomyces venezuelae |
| (d) Terramycin | (4) Streptomyces erythreus |
Write the microbial source of following organic acid.
Citric acid
Write the microbial source of following organic acid:
Fumaric acid
What are A, B and C in the table given below?
| Sr. No. | Microbes type | Name | Commercial product |
| 1. | Fungus | A | Penicillin |
| 2. | B | Aspergillus niger | Citric acid |
| 3. | Bacterium | Bacterium licheniformis | C |
