Which of the following pairs are correctly matched 1 Rhizobium Found in roots of legumes where it fi...........

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Which of the following pairs are correctly matched?

1. Rhizobium - Found in roots of legumes where it fixes atmospheric nitrogen as ammonia, which is then converted into useful amino acid.

2. Azotobacter - Makes the soil fertile by fixing atmospheric nitrogen in the soil.

3. Streptomyces bacteria - Used for Sewage treatment.

4. Lactobacillus - Ferments lactose (milk sugar) to lactic acid.

5. Methanogenic - Produces Strep-tomycin antibiotic.

Select the correct answer from the codes given below

1 and 2 only

3 and 5 only

1, 2 and 4 only

All of the above

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Explanation:

Rhizobium is found in roots of legumes, like Peas, grams, Pulses etc, where it fixed atmospheric nitrogen as ammonia, which is then converted into useful amino acid.
Azotobacter is used to makes the soil fertile. It fixes atmospheric nitrogen in the soil.
Streptomyces produces Streptomycin antibiotic.
Lactobacillus ferments lactose (milk sugar) to lactic acid. This helps in setting of milk into curd.
Methanogenic used for bacteria Sewage treatment.