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Autotrophic Nutrition

Which one of ...

Question

Which one of the following is detrimental to soil fertility?

A

Saprophytic bacteria

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B

Nitrosomonas

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C

Nitrobacter

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D

Pseudomonas

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Solution

The correct option is C Pseudomonas
Pseudomonas is denitrifying bacterium which converts the nitrates and the other nitrogen compounds into gaseous ammonia or nitrogen gas. The soil fertility is due to the presence of the salts in the form of nitrates and nitrites. The presence of this bacterium is detrimental or dangerous for the soil fertility.
Thus, the correct answer is option D.

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