Which one of the following micro-organism oxidizes nitrite to nitrate?
Nitrobacter is a genus of bacteria that belongs to the Nitrospiraceae family. They are known for their ability to perform nitrification, which involves the oxidation of nitrite (NO2-) to nitrate (NO3-). Nitrosomonas, on the other hand, is responsible for the oxidation of ammonia (NH3) to nitrite in the nitrification process. Azotobacter and Clostridium are not directly involved in nitrification.
With a vengeance
Which word or words explain the meaning of the following idioms;
Down In the drumps
Select the most appropriate meaning of the given idiom.
At your beck and call
Contain commonly used idioms and phrases in the English language. In each case, choose the option representing the correct meaning of each of ...
Fill in the blank with appropriate idioms.
The department of science wants a little more …………………… at work.
...A Slap on the Wrist
In each question, four alternatives are given for the Idiom/ Phrase given in bold in the sentence. Choose the alternative which best expresses the mean...
Select the most appropriate meaning of the given idiom.
At your beck and call
The given idiom is followed by four meanings. Choose the one which best expresses the meaning of the given idiom.
In dribs and drabs
Fill in the blank given below using the correct idiom.
The company's unethical practices finally caught up with them, and the scandal becam...
